... Frequency:13.56MHz,125KHz,860-960MHz Color:red,white,bule TK4100 RFID Velcro Wristband 125 KHz/13.56 MHz Passive RFID ... , red, yellow, green, etcFrequency: 125KHz, 13.56MHz, 860-960MHzChips: EM4200, TK4100, T5577, Hitag, Mifare 1K/4K, I CODE SLI, UHF, etc ... and encryption optioans.- Transponder design base on correspond with customer reader.- Individual process RFID Watch(wrist card) OEM/ODM Options:We ...