PHONE HEADSET FOR CISCO PHONES: ONLY compatible with Plantronics M10, M12, M22 & MX10 Amplifiers and Cisco IP phones 6851, 6921, 6941, 6945, 6961, 7811, 7821, 7841, 7861, 7931G, 7940, 7940G, 7941, 7941G, 7942, 7942G, 7945, 7945G, 7960, 7960G, 7961, 7961G, 7962, 7962G, 7965, 7965G, 7970, 7970G, 7971, 7971G, 7975, 7975G, 8811, 8841, 8845, 8851, 8861, 8941, 8945, 8961, 9951, 9971. NOTE: THIS TELEPHONE HEADSET IS NOT FOR CELL PHONES AND COMPUTERS. | BUILT TO LAST AND PURCHASE NOTES: The durable structure and reinforced cord ensure this wired telephone headsets to withstand heavy use in busy working environment. NOTES: 45 days money back & 2 year warranty. NOT COMPATIBLE WITH Cisco SPA phone series; ONLY FOR SPECIFIC PHONE MODELS LISTED IN DESCRIPTION (for phones not listed, pls contact with us for compatibility advice, to avoid buying the wrong headset). | CRYSTAL CLEAR CALLS: Design with noise cancelling microphone and flexible boom mic, this professional office phone headset provides crystal-clear communication even in noisy work environment. Acoustic Shock Protection protects our hearing carefully from sudden sound burst. | ALL DAY COMFORT: This hands free phone headset with microphone assists you to work more comfortably and reduce pain on your neck and shoulder. Adjustable headband will fit all head sizes and wear firmly. The soft and high quality leatherette ear cushions and super lightweight design increase all-day wearing comfort. | EASY AND CONVENIENT TO USE: Plug this telephone headphone directly into your Cisco desk phones without additional amplifiers or adapters. Including volume control and microphone mute switch onto the cord, this RJ9 headset is customized for CISCO landline phones in Call Center Service, Conference Calls, Telemarketing, Home and Office etc.

2.5MM JACK TELEPHONE HEADSET: 【NOT for Cell Phones and Computers】This office phone headset is ONLY compatible with Panasonic Dect 6.0 AT&T VTech RCA Cisco SPA Uniden Grandstream Polycom Gigaset Clarity Zultys Cortelco landline phones and most Cordless Dect phones with standard 2.5MM headset jack. SEE MORE COMPATIBLE PHONE LIST IN DESCRIPTION. | Panasonic DECT PHONES COMPATIBILITY: The phone headset for Panasonic cordless phones KX-TGF575S, KX-TGF352N, KX-TGA470, KX-TGA652, KX-TGA660, KX-TGA931T, KX-TGA950B, KX-TGE430B, KX-TGE432, KX-TGE433B, KX-TGEA20, KX-TGEA40, KX-TG6592T, KX-NT136, KX-NT343, KX-NT346, KX-NT366, KX-T7603, KX-T7625, KX-T7630, KX-T7633, KX-T7636, KX-T7730, KX-T7735, KX-T7736, KX-TG7731, KX-TGA470C, KX-DT521, etc. ONLY works for phones with 2.5MM headset jack. For other phones, pls contact us for compatibility advice. | CRYSTAL CLEAR CHAT: Business-grade Wideband 2.5mm office telephone Headset with flexible adjustable Noise-Cancelling Microphone for crystal-clear conversations, Acoustic Shock Protection to protect your hearing. Perfect for Call Center, Telephone Counseling Services, Insurance, Hospitals, Office and Home. | ULTRA COMFORT: Super lightweight landline Panasonic phone headphone with adjustable headband to fit all head sizes, soft leatherette ear cushion enhances all-day wearing comfort. Easy to use, plug the headset directly into the 2.5mm headset jack on your phone, no additional amplifiers or adapters required. | SUPER DURABLE & 2 YEAR WARRANTY: 45 days money back & 24-month worry-free guarantee. Professional Mic Mute / Volume Control built in. Precision design, quality plastics, uni-body headband construction, high quality microphone makes this call center headset for Panasonic phones sturdier and more durable.

3.5MM JACK UNIVERSAL COMPATIBILITY: Works for iPhone, Samsung, most smartphones and Computer Laptop PC Mac iPad Tablet or any electronic device with a 3.5mm audio jack connection. Includes a 3.5mm Y-adapter for Dual-Jack PC or Laptop. For iPhone 7/8/X/XS/XR or latest version of iPhone, Apple Original Lightning to 3.5mm Adapter is Needed. Doesn’t come with Headset(Supplied by Apple Store). | CRYSTAL CLEAR CALLS: Wired PC headset with noise cancelling mic reduces unwanted background noise for clear conversation. Flexible and adjustable boom can be positioned for better voice capture. Built-in Acoustic Shock Protection Circuit protects your hearing. | SUPER LIGHTWEIGHT & COMFORTABLE: Callez hands free 3.5mm cell phone headset with adjustable headband allows to fit all head sizes. The soft and high quality leatherette ear cushion and super lightweight design ensure all-day comfortable wearing. | EASY AND CONVENIENT TO USE: This Mono 3.5mm computer headphone supports easy plug-and-play operation for PC, Laptop, Cell Phone or Tablet, no installation needed. Simple in-line controls allow you adjust the volume or answer/end calls without disruption. | ULTRA DURABLE & 2-YEAR WARRANTY: 45 days money back & 24-month worry-free. Precision design, quality plastics, uni-body headband construction make this laptop headset more durable and sturdier. Perfect for Classroom, Home, Office, Work, Business, Call Center, Conference Calls, Skype, Zoom and more.

2.5MM TELEPHONE HEADSET: This telephone headset ONLY fit AT&T Panasonic Vtech Cisco SPA Grandstream Polycom Gigaset Uniden Clarity home office landline phones and most Dect 6.0 cordless Phones with standard 2.5MM HEADSET JACK. DON’T BUY IT FOR CELL PHONES & COMPUTERS. For other phones, please feel free to consult us for compatibility guide and advice. | COMPATIBLE MODELS: ONLY COMPATIBLE WITH SOME SPECIFIC PHONE MODELS LISTED IN DESCRIPTION. Some specific models from AT&T: TL88002, TL86103, TL86003, TL76108, T L7610, TL88102, TL86109, TL86009, CL82550, CL82500, CL8230, CL82309, CL82350, CL80109, ML17928, ML17959, ML17939, ML17929, ML993, SB67108, SB67138, SB67148, SL82418, SL82318, SL82118, SL80108, SB67158, 1070, etc. Panasonic: KX-TGF575S, KX-TGF352N, KX-TGA470, KX-TGA652, KX-TGA660, KX-TGA931T, KX-TGA950B, KX-TGE430B, KX-TGE432, KX-TGE433B, KX-TGEA20, KX-TGEA40, KX-TG6592T, etc. | SUPERB SOUND & COMFORTABLE: 2.5mm Lightweight office phone headset with enhanced voice clarity technology reduces unwanted background noise and delivers clear sound for both ends. Soft and high quality ear cushions ensure comfortable wearing even for long phone conference calls. | EASY TO USE: Just directly plug the headset into your 2.5mm headset port on your phone, no additional amplifiers or adapters required. Comes with in-line volume control, this AT&T phone headset is easily adjusted the volume and muted the microphone when needed. | GREAT DURABILITY & WARANTTY: The High-end materials and durable construction ensure this Panasonic landline phone headset to withstand the constant demands of all-day use in busy environments. Guarantees your satisfaction with 45 days free replacement or full refund and 2 years warranty.

【WIDE COMPATIBILITY】: Compatible with iPhone, Samsung, most smartphones and Computer Laptop PC Mac iPad Tablet with single 3.5mm audio jack. Includes a Dual 3.5mm Y-adapter for separate headphone and microphone connection to a PC or Desktop. For iPhone 11/12/13...Newer iPhone, Original Lightning to 3.5mm Adapter is required(Must be supplied by Apple Store, otherwise the headset will not work on the phone calls). | 【2-YEAR WARRANTY & ULTRA COMFORT】: 45 days money-back & 24 months warranty. Ultra lightweight 3.5mm Cell Phone Headset with adjustable headband to fit all head sizes, 330°adjustable boom mic, soft and breathable ear cushion enhance all-day wearing comfort. | 【SIMPLE CALL CONTROLS & MULTI-PURPOSE】: Simply plug in and play. Easy to adjust volume up/down, answer/end a call. Callez Computer Headphone is perfect for Skype Chat, Call Center, Office, Business, K12 School Classroom, Online Courses, Conference Calls, Webinars, Dictation, MP3 players, Computer Games and more. | 【CRYSTAL CLEAR CALLS】: Professional 3.5mm Call Center Phone Headset enables natural listening experience. Built in high quality noise cancelling microphone to reduce background noise and provide crystal clear sound quality. Acoustic Shock Protection Circuit protects your hearing. | 【ULTRA DURABLE】: Precision design, quality plastics, unibody headband construction, flexible microphone boom makes this 3.5mm PC Headset sturdier and more durable. Compete with Jabra Business Office Headsets.

Clear Calls: Office 3.5mm cell phone headset with Noise-canceling microphone filters out background noise. Wideband audio delivers clearer conversations, while Acoustic Shock Protection Circuit protects from listening fatigue and loss. | Comfortable Wearing: Monaural cell phone Truck Driver headset with soft leatherette ear cushions guarantees a perfect fit. Lightweight office telephone Skype headset equipped with adjustable headband for all-day wearing comfort. | Extremely Durability: Ergonomically designed call center headset made with high impact plastic to continuous use, and equipped with flexible microphone boom ensure more guaranteed life span. | Callez Mobile phone Trucker headset comes with 2.5mm universal headset adapter, compatible with most phones with standard 2.5mm headset jack. Just plug this cell phone headset into the adapter and then into your home office business phone. Use it if needed. | Wired cell phone headsets with volume control and on& off answer button. ONLY fits for most smart phones and iPad MacBook PC with single 3.5mm Headset Port.

BROAD COMPATIBILITY: Broadly used as most smart phones and iPad laptop PC with single 3.5mm Headset Port with standard 3.5mm connection. With Extra 2.5mm cable adapter for Most Cordless Dect Phones. | CRYSTAL-CLEAR SOUND: 3.5mm cell phone headset with Noise-cancelling mic filters out background noise and breathing sounds. Wideband audio delivers clearer conversations and provides crystal-clear communication even in noisy work environment. | ALL DAY COMFORT: With foam ear cushions and around the ear design, this computer headset also with adjustable headband to fit all head sizes to enhance all-day wearing comfort. | EXTREMELY DURABILITY: The highly ergonomic call center headset is made of high-impact plastic for continuous use and comes with a flexible microphone boom to ensure a more guaranteed lifespan. | 2-YEAR WARRANTY & EASY TO USE: 45 days money back & 24-month worry-free. Simply plug in and play, no installation needed. Callez pc headset is great ideal for Online courses, Office, Home, Skype Chat, Call Center, Business and more.

【Compatible List for Yealink IP Phones】RJ9 connectivity to Yealink IP phones, including T19(P)E2/ T20P/ T21(P)E2/ T22P/ T23P/ T23G/ T26P/ T27G/ T28P/ T29G/ T30/ T30P/ T31/ T31P/ T31G/ T33P/ T33G/ T38G/ T40P/ T40G/ T41S/ T42S/ T46S/ T48S/ T42U/ T43U/ T46U/ T48U/ T53/ T53W/ T54W/ T57W/ T58A/ VP59/ T41S SFB/ T42S SFB/ T46S SFB/ T48S SFB/ T55A SFB/ T56A SFB/ T58A SFB/ MP56 etc. | 【Perfectly Compatible with More VoIP Phones】Direct connect over the head landline telephone headset with microphone. Compatible with Yealink All IP Phones, Avaya 1608 1616 9608G 9611G 9620 9630 9640 9641G 9650 J139 J169 J179, Snom VoIP Phones 300 320 360 710 821 870 , Grandsteam GXP 1400 1405 1610 1615 1620 1625 1630 2000 2120 2124 2130 2135 2170 280 285 GRP2613 GRP2604P GXV3005 3006 3240 3275 3370 and more desk phones listed in description. | 【Crystal Clear Calls】 High sound quality RJ9 Call Center Phone Headset with Microphone enables excellent sound quality for natural listening experience, features Noise Cancelling Microphone to reduce background noise, Acoustic Shock Protection Circuit to protect your hearing. Less noise, Clearer voice. | 【Super Comfort & Ultra Durable】Hands-free RJ9 Office Phone Headset with adjustable headband to fit all head sizes, high quality and soft leatherette ear cushion enhance all-day wearing comfort. Professional Mic Mute/Volume Control built in. Precision design, quality plastics, unibody headband construction, superior quality microphone makes this landline phone headset sturdier and more durable. | 【2-Year Warranty & Compatibility Tips】We offer 45 days money back & 24-month worry-free guarantee. THIS RJ9 JACK DESK PHONE HEADSET DOESN’T WORK FOR SMARTPHONES AND COMPUTERS. ONLY COMPATIBLE with some specific phone models listed in description (include but not limited). For Other Landline Phones, Pls contact us for Compatibility Guide or Advice.

2.5MM TELEPHONE HEADSET (for landline and cordless phones only): COMPATIBLE WITH AT&T Vtech Panasonic Uniden RCA Cisco SPA Grandstream Zultys Gigaset Office landline and most cordless dect phones with standard 2.5mm headset jack. For compatibility list in details, please check description below (include but not limited). NOTE: THIS PHONE HEADSET DOES NOT BE USED FOR CELL PHONES AND COMPUTERS. | CRYSTAL CLEAR CALLS: Mono 2.5MM landline phone headset with 330°adjustable, flexible microphone supports your wearing preferences and delivers optimal clear voice. Noise-cancelling mic reduces background noise. Acoustic Shock Protection Circuit protects your hearing from fatigue and loss. | LIGHTWEIGHT AND COMFORTABLE: Wired office headset with adjustable and flexible headband fits all head size perfectly and wear on firmly. Ultra lightweight telephone headset equipped with soft leatherette ear cushion improves the comfort of all-day wearing. | EASY TO USE: Directly plug and use, no additional amplifiers or adapters required. The business telephone headset has inline volume control and mute switch to provide convenience for calls, which is an ideal choice for call center services, teleconferences, telemarketing, homes and offices. | ULTRA DURABLE & 2 YEARS WARRANTY: 45 days full refund and 2 years warranty. DON'T BUY IT FOR COMPUTERS AND CELL PHONES. Professional structural design with solid cord ensures this office phone headset more durable.

Polycom IP Phones Compatibility: This RJ9 office phone headset works for Polycom VVX411 VVX311 VVX410 VVX500 VVX400 VVX300 VVX301 VVX310 VVX501 VVX401 VVX201 VVX601 VVX250 VVX350 VVX450 VVX101 VVX150 VVX330 VVX600 CX300 CX500 CX600 CX700 SoundPoint 300 301 335 430 450 500 (rev. E or later) 501 550 560 600 601 650 670. NOT for Polycom SoundPoint IP320, 321, 330, 331, Pro SE-220, SE-225. | RJ9 Jack Headset Compatibility: Callez telephone headset is ONLY Compatible with Some Specific Landline Phone Models from Polycom Avaya Plantronics Mitel NEC Shoretel Aastra Allworx Zultys Nortel InterTel AltiGen and etc. Please check Compatible Phone List in description before purchasing. NOT FOR CELL PHONES OR COMPUTERS. | Crystal Clear Chat: RJ9 phone headset features a noise-canceling microphone to reduce background noise and provide excellent sound quality. Flexible microphone boom captures sound well, plus acoustic shock protection circuit protects your hearing. | Super Comfortable: Designed with soft leatherette ear cushions, callez phone headsets for office phones fit nicely on the ear. The comfortable over-the-head design and adjustable headband enable this landline phone headset comfortable to wear for extended periods of time. | Warranty Guarantee: Callez phone headsets are backed by a 45-day money back and 24-month worry-free guarantee. Please review the Compatibility List prior to purchase. For other phones not listed, please contact us for Compatibility Guide or Advice.

【NOT Work with Smartphone and Computer】See Compatible Phone List in Description. ONLY BUY the item if you have one of phone models in the list. Direct connect landline telephone headsets, Compatible with Some Specific Phone Models from ShoreTel Zultys Toshiba NEC Aspire Dterm Nortel Norstar Meridian Siemens ROLM Packet8. Compatible with Plantronics S12... Polycom 300 301 335 430 450 500 501 550 560 600 601 650 670 CX300 CX500 CX600 CX700 VVX300 VVX310 VVX311 VVX330 VVX400 VVX410 VVX411 VVX500... | Comfortable Wearing: Monaural RJ9 deskphone headset with soft leatherette ear cushions guarantees a perfect fit. Lightweight office telephone headset equipped with adjustable headband for all-day wearing comfort. | Clear Calls: Hands-free RJ9 Office phone headset with Noise-canceling microphone to reduce background noise. Wideband audio delivers clearer conversations, while Acoustic Shock Protection Circuit protects from listening fatigue and loss. | Extremely Durability：Ergonomically designed call center phone headset made with high impact plastic to continuous use, and equipped with flexible microphone boom ensure more guaranteed life span. Volume control and mute button built-in. | ONLY COMPATIBLE WITH SOME SPECIFIC PHONE MODELS LISTED IN DESCRIPTION. Buy the item today if you have one of phone models in list. For other phones, please contact us for Compatibility Guide.

CRYSTAL CLEAR CALLS: Business-grade Wideband 3.5mm Computer Headphones with Noise-Cancelling Microphone for crystal-clear conversations, Acoustic Shock Protection to protect your hearing. | MOST COMFORT HEADSET: Ultra lightweight cell phone headset with adjustable headband to fit all head sizes, a flexible mic to suit your preference, soft and high quality ear cushion enhance all-day wearing comfort. | WIDE COMPATIBILITY: Compatible with iPhone, Samsung, most Smart Phones and Computer Laptop PC Mac iPad iPod Tablet with Single 3.5mm headset jack. Includes a Dual 3.5mm Y-adapter for PC or Laptop. A true universal solution. | ULTRA DURABLE HEADSET: Precision design, quality plastics, uni-body headband construction, flexible mic make this 3.5mm Laptop headset more durable and sturdier. Compete with Plantronics or Jabra high-grade Office Skype Headsets. | 2-YEAR WARRANTY & EASY TO USE: 45 days money back & 24-month worry-free. Simply plug in and play. Convenient to adjust Volume up/down, Answer/End a call. Callez computer headset is ideal for Skype Chat, Business, Call Center, Conference calls, Dictation, Dragon speaking, Online courses, Webinar and more.

WIDE COMPATIBILITY:【NOT for Cell Phones and Computers】 The office telephone headset is COMPATIBLE with some Landline Phones Polycom Allworx 9244 9204 9212 Mitel 5320 5324 8568 6867i ShoreTel 230 265 420 480 Avaya Aastra Nortel Toshiba etc. SEE MORE COMPATIBLE PHONE LIST IN DESCRIPTION. | WORK FOR Polycom PHONES: This RJ9 phone headset for Polycom office phones VVX411 VVX410 VVX400 VVX401 VVX500 VVX501 VVX300 VVX310 VVX311 VVX250 VVX350 VVX101 VVX201 VVX301 CX300 CX500 CX600 CX700 SoundPoint 300 301 335 430 450 500 (rev. E or later) 501 550 560 600 601 650 670. NOT for Polycom Phone SoundPoint 321, 331, 331c, Pro SE-220, SE-225. | SUPER COMFORTABLE: Super lightweight landline phone headset with adjustable headband to fit all head sizes, soft leatherette ear cushion enhances all-day wearing comfort. Easy to set up, direct connect the headset to your phone, no additional amplifiers or adapters required. | CRYSTAL CLEAR CHAT: Corded office telephone Headset with flexible adjustable Noise Cancelling Microphone to reduce background noise. Acoustic Shock Protection Circuit to protect your hearing. Less noise, Clearer voice. | 1 YEAR WARRANTY: We offer 30 days money back & 12-month worry-free guarantee. Perfect for Call Center, Telephone Counseling Services, Insurance, Hospitals, Office and Home. ONLY COMPATIBLE WITH SOME SPECIFIC PHONE MODELS LISTED IN DESCRIPTION (include but not limited). For Other Models, pls contact us for Compatibility Guide or Advice.

【NOT for Cell Phones and Computers】COMPATIBLE with Yealink All IP Phones Avaya 1608 1616 9608G 9611G 9630 J139 J169 J179 Snom 300 320 360 710 821 870 compatible with Panasonic KXT 2260 7220 7330 7420 7433 7665 7740 Zultys ZIP 33G 36G 37G 33i 35i AltiGen IP805 Aastra 6737i. SEE MORE COMPATIBLE PHONE LIST IN DESCRIPTION. | Yealink IP PHONES COMPATIBILITY: This RJ9 phone headset for Yealink office phones SIP-T19P, T20P, T21P, T22P, T23P, T26P, T27P, T28P, T30P, T31P, T33P, T40P, T41P, T23G, T27G, T29G, T31G, T32G, T33G, T38G, T40G, T41G, T42G, T46G, T48G, T49G, T41S, T42S, T46S, T48S, T42U, T43U, T46U, T48U, T53W, T54W, T57W, T55A, T56A, T58A etc. | SUPER COMFORTABLE: Super lightweight landline phone headset with adjustable headband to fit all head sizes, soft leatherette ear cushion enhances all-day wearing comfort. Easy to set up, direct connect the headset to your phone, no additional amplifiers or adapters required. | CRYSTAL CLEAR CHAT: Corded office telephone Headset with flexible adjustable Noise Cancelling Microphone to reduce background noise. Acoustic Shock Protection Circuit to protect your hearing. Less noise, Clearer voice. | 1 YEAR WARRANTY: 30 days money back & 12-month worry-free guarantee. Perfect for Call Center, Telephone Counseling Services, Insurance, Hospitals, Office and Home. ONLY COMPATIBLE WITH SOME SPECIFIC PHONE MODELS LISTED IN DESCRIPTION (include but not limited). For Other Models, pls contact us for Compatibility Guide or Advice.

CISCO COMPATIBILITY:【NOT for Cell Phones and Computers】This office telephone headset is compatible with Cisco office phones 7841 7945 7821 7965 7861 7811 7942 7960 7962 7841 7940 7961 8841 8811 8845 8851 8865 6941 6945 Plantronics M12 M22. SEE MORE COMPATIBLE PHONE LIST IN DESCRIPTION. | PHONE COMPATIBILITY GUIDANCE: If your phone model is not in the description list, kindly contact us for compatibility checking before purchasing. IT IS ONLY COMPATIBLE WITH SOME SPECIFIC CISCO PHONE MODELS LISTED IN DESCRIPTION. For other models, pls contact us for Compatibility Guide or Advice. | CRYSTAL CLEAR CHAT: Corded Binaural office phone headset with flexible adjustable Noise Cancelling Microphone to reduce background noise. Acoustic Shock Protection Circuit to protect your hearing. Less noise, Clearer voice. | ULTRA COMFORTABLE: Super lightweight landline phone headset with adjustable headband to fit all head sizes, soft leatherette ear cushion enhances all-day wearing comfort. Easy to set up, direct connect the headset to your phone, no additional amplifiers or adapters required. | 1 YEAR WARRANTY: We offer 30 days money back & 12-month worry-free guarantee. This RJ9 landline phone headset for cisco phone is perfect for Call Center Service, Telephone Counseling Services, Phone sales, Insurance, Hospitals, Banks etc. Business, Office and Home.

WARRANTY GUARANTEE: 45 days money back & 24-month worry-free. This USB headset with microphone fits for Windows 2000/7/8/10/XP/Vista, Mac OS X and most all UC Platforms. Ideal for Call Center, Conference calls, Online courses, Classroom, Skype and more. | CLEAR CALLS: Professional wired USB Headset with DSP technology for clear conversations, the Noise-Cancelling Microphone minimizes unwanted noise while speaking. Plus Acoustic Shock Protection protects your hearing. Less noise, Clearer voice. | ULTRA COMFORT: This lightweight computer headset is designed for long time using. The adjustable headband fits all head sizes, a 330°rotating boom can be positioned for better voice capture, and breathable leather ear cushion for hours of comfort. | EASY TO USE: This headset with microphone for pc provides easy plug-and-play operation for PC or Laptop, no installation software needed. Simple in-line controls let you adjust the volume or mute calls without disruption. | DURABLE DESIGN: With quality plastics, uni-body headband construction, excellent quality metal mic boom, this computer headset with microphone is more durable and sturdier, customized for student, personal or professional use.