čip RFID: ID + IC (125KHz + 13.56MHz). Or customized UHF composite Frequency: LF+HF 125KHz+13.56MHz Protocol standards: ISO 11784/11785+ISO 14443A Storage capacity: 8Kbits R/W time: 1~2ms Power supply: passive card Sensing distance: 2~10cm Size: 51.4× 32,4 × 5.8mm, customizable Material: ABS shell Ultrasonic Plastic Welding Working temperature: -20°C~+55°C International protection agreements: IP67/IP68 Endurance: 100,000 times Data retention: >10 let