Features: Control host arming and disarming through different data codes Arming and disarming through password or RFID card Support 10 RFID cards Adopt ultra-low power design, Built-in lithium battery Can be via USB interface Wireless transmission: Long transmission distance Strong anti-interference ability Signal security and stability Material: plastic+metal colour: Black Package Contents: 1 x Keypad lock 1 x USB charging cable 3 x RFID card(Due to different product batches, some accessories may be different, which does not affect use.) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.