This is a mini learning remote control. It can copy the functions of various brands and types of home appliance remote controls. The commonly used keys of other remote controls can be copied to this remote control, so that one remote control can control the commonly used functions of various devices. 8 buttons are free to learn, simple settings, and your old remote control functions can be copied to this remote control. It is applicable to any infrared remote-controlled home appliance. Simple operation, it is an ideal choice for the loss, damage and replacement of remote controls of various home appliances. The learning operation is equivalent to copying and pasting, and you need to have a functioning remote control. If the-original remote control is , please purchase an-original remote control or a universal remote control. This product must be set up before it can remotely control your home appliances. Power Supply:2 x AAA battery (Not included batteries) Note: 1. Make sure that all buttons are learned successfully during the setting process, otherwise, please re-learn the button, 2. Only applicable to infrared remote controls 3. It may not be applicable to remote controls that perform special infrared waveforms, or may require repeated learning. Color:As Shown Material:plastic Package Contents: 3 x Learning Remote Control 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.