Compatible with various Android systems and set-top boxes, suitable for computers, smart TVs, network set-top boxes, TVs, projectors, mobile phones, mini computers and other devices that use remote control.Turn on the power button of the remote control and connect to the Bluetooth of the remote control to connect to your device and use it immediately, which is more convenient and quicker."Operating instructions: 1.Open Bluetooth in the device system settings, search the device name ""HID Remote01"" and pair it； 2.Press ""OK"" and ""ON/OFF""buttons at the same time, and release after the red light is always on; 3.Align the device remote control with the infrared head of the remote control to be learned, and then press thebutton to learn on the device remote control.The learning is successful when the red indicator flashes ; 4.Press and hold ""OK"" and "" Volume+”buttons at the same time until the red indicator flashes, thedevice will restore factory setting."