10pcs T5577 RFID Keyfobs 125kHz Writable T5577 Key Tags Proximity ID Card Token Tag Rewritable T5577 Universal for Keyless Entry Access Control Systems & Security Lock- Black

Additional Details from the Manufacturer

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• Package includes: 10pcs black 125kHz T5577 key fob. Standard 125Khz ID RFID keyfob, support 125khz proximity ID cards token tag duplication. Note: These are blank key tags without pre-programmed card numbers. You cannot directly add them to RFID locks or use a card reader to read them. Before using, please write data(card numbers) into them by a 125kHz RFID card writer first.
• Product Size: 40*30*4mm(1.57*1.18*0.16 inch). High-Quality Copper Coil inside. Casing Material: ABS Plastic. Waterproof & Durable.
• Applications: Hotel key chain, Access control systems, time attendance system, ticketing, packing card. This T5577 proximity key card can copy duplicate em4100 TK4100 ID Card Keychains tags.
• Chip: ATMEL T5577 (compatible with other universal 125kHz tags). Frequency: 125kHz; Sensing Distance: 2.5 to 10 cm (1 to 4 inch); Data Storage Life: 10 Years. It's rewritable, and it can write in 125khz id format and H-ID WG 125khz format, can be customised to 26-bit Prox format. Compatible with T5567 T5577 EM4305.
• Writable & Rewritable: can be writed by 125KHz RFID writer/copier, DO NOT work with ONITY SYSTEM and Proxmark3 RDV4. It can be erased and written 100,000 times. Suitable for making new and back-up tags. More product info and FAQ is listed in the Product Description. Please read them before purchase.