Compatibility: Support Bluetooth-compatible 4.0, wireless control over 10 meters. Automatically recognize for iPhone and for Android phone, no need to switch manually. Can be used for mobile phones, tablets, wirelessBluetooth-compatiblegamepads, music control, selfies, VR headset, etc. Built-in lithium battery: Built-in lithium battery with mini USB port for charging. Low power consumption and long standby time. LED light: the charger power is 5v/1A, the red light is on when charging; the red light is off when it is fully charged. The blue light is on during Bluetooth-compatible pairing and mode switching. Mode keys: Enter (OK), return, mode switching, on/off, function keys, joystick.<br><br>Compatible: Support Bluetooth-compatible 4.0 Battery: 180mAh Function: VR remote control, control phone volume, confirm, etc., only supports simple mini games Colour:Black Material:ABS<br><br>Package Contents: 2pcs x R1 Mini Ring<br><br>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.