T5577 Презаписваема RFID гривна — a field-programmable 125 kHz silicone wristband that emulates EM4100, HID Prox II (26/35/37-bit), Indala, AWID, Kantech ioProx, Farpointe, and Keri Systems on a single reusable chip. Rewrite the UID on any $30 USB writer in under 2 seconds; 100,000 write cycles per block, 10-year data retention, optional 32-bit password lock. Food-grade silicone (FDA / EU 10/2011), IP68 waterproof, 500+ machine washes, adult 202 × 20 × 2.5 mm strap with 3-hole snap adjustment. Breaks vendor lock-in for hotels, gyms, municipal facilities, and event operators who need to control their own UID inventory. Shenzhen manufacturer since 2008, MOQ 100 pcs, free 10-piece sample kit in 5–7 business days. HS 8523.52.