Features: brand new and high quality Due to the large number of bluetooth-compatible modules used by different devices, bluetooth-compatible mode may not be supported by some devices. In 2.4g mode, the voice function can support most android devices. This product is an updated version of g20s pro, which supports 2.4g mode and bluetooth-compatible mode. To use bluetooth-compatible mode, you need to unplug the usb receiver. When the usb receiver is connected, the default is 2.4g mode connection. Specifications: Material:ABS Insert usb receiver can work in BT5.0/2.4g wireless gyroscope function Don'for t insert receiver can only work in BT5.0 Plug and for play;Backlight buttons Gyroscope function Voice search function Power button & mute button programming Size:160x42x18mm/6.30x1.65x0.71in Package Includes: 1 x Wireless Remote Control. note: Only power button and support mute button go learning. This air mouse mainly works with Android TV box, not 100% for some for smart TV and devices. Support Voice Assistant. But in bluetooth-compatible mode, voice function can only support atv system devices. Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!