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.