Frequency: 125KHz; Sensing distance: 1 to 7 cm (0.39 to 2.76 inch); Data storage life: 10 years. Chip: T5577 (compatible with other universal 125KHz tags). | Writable & Rewritable: It can be erased and written 100,000 times. Suitable for making new and back-up tags, with the 125KHz RFID card writer/copier. | You cannot add them to RFID locks directly. You must write data into them by a 125KHz RFID card writer before use. They are blank tags, no data inside. | Can write by 125KHz RFID writer/copier, need to write by RFID writer. Not NFC chip, can't work with NFC phone. | Please note it can't be read before you program the chip, it's original chip. Can work before you write on it.

Compatible with hid proximity card, RFID 125khz ID EM4100, T5577&T5577 card and keyfobs. NOT working with encrypted tags, DuoProx II HID,iCLASS CARD HID,MICROPROX TAS HID and so on.Card types not mentioned in the description are not suitable, please read the product description carefully before purchasing. | Handheld Portable 125KHz RFID ID reader writer(125khz copier/duplicator),mini size easy and convenient to operating and carry for outdoor using. | Packing with enough tags and cards for your preference, Coming with 2pcs extra regular EM4100 wristband (Cannot be copied.),4pcs rewritableT5577 RFID white cards ,8 rewritable T5577 RFID tags. | Hanlheld RFID reader writer widely applying for door access at home , school, office,factory and shipping mall security entry,etc. | Notes-- the RFID reader writer can't working with HIiD Mode ,such as 125HZK PROX II,125HZK PROX III, HIXD ICLASS ,all these can not be copied .Also the encrypted 125khz Card can't be reader ,before order this please make sure your tags mode if it could be compatible, If you are not sure whether the card you need to copy is compatible, PLEASE DON'T BUY. Please contact the seller's after-sales service for return and replacement.

WIFI FULL DECODING: Complete decoding function, support cracking IC full encryption/Semi-encryption card. | COMPATIBLE WITH: Cards that support reading: IC, MF1, S50, S70, ID, TK4100, EM4100, HID26, HID35, HID37, GID64, GID3002, SID32; Blank copy cards that support writing: UID, FULD, ICUID, T5577, EM4305, EL8265, 5200. Does NOT fit for iclass se fob. | SUPPORT FREQUENCY: ID-125KHz, ID-175KHz, ID-250KHz, ID-300KHz, ID-375KHz, ID-500KHz etc. | EASY TO USE: Wireless network connection for cloud decryption,no computer required, more convenient, easy operation. | PREMIUM MATERIAL: High-Quality Copper Coil inside. Casing Material: ABS Plastic. Waterproof & Durable.

ICOPY Support: IC, MF1, S50, ID, TK4100, EM4100, HID26, HID35, HID37, 13.56MHz, 125KHz, 175KHz, 250KHz, 300KHz, 375KHz, 500KHz, etc. | Package Includes: Each package contains host, 10pcs t5577 RFID cards, 10pcs 125khz key fob tags,10pcs 13.56mhz key fob tags and manual, type-c data cable, Type-C OTG adapter (gift). The items are complete and can meet your usage needs, you can also share them with your friends and family | Independent NFC: Let mobile phones, bracelets and other devices with NFC function simulate encrypted IC cards with one key, and easily realize the card-free when going out. Our RFID id card reader supports mobile APP and Android systems with rich card-making and excellent decryption performance | Handheld Portable: Rfid id card reader measures about 18.2*7cm/7.2*2.8 inch. Suitable size is easy and convenient to operate and carry for outdoor using | Wide Applications: Handheld RFID reader writer widely applying for door access at home, school, office, factory and shipping mall security entry, etc