Warm tips: 1.Only power button and mute button can be programmed. 2.This air mouse mainly works with android tv box, not compatible with some smart tv G20S PRO BT Basic functions: 1.Insert USB Dongle can work in BT5.0/2.4G wireless Gyroscope function,No USB Dongle only can work With BT5.0 2.Plug and play 3.The Air mouse function 4.The Voice control function 5.The Infrared learning function(you can learn it through the 'power' button) 6. Backlight buttons Specifications: G20S PRO Basic functions: 1.The 2.4G wireless Gyroscope function 2.Plug and play 3.The Air mouse function 4.The Voice control function 5.The Infrared learning function(you can learn it through the 'power' button) 6. Backlight buttons Package Included: 1 * Air Mouse 1 * USB Receiver 1 * User Manual Notes: Note: 1. Voice control function can only be used on the TV BOX with Google Voice Assistant. 2.In Bluetooth mode, the voice function can only support ATV system devices. 3.In 2.4G mode, the voice function can support most Android devices that support Google Voice. 4.Because different devices use many Bluetooth modules, the Bluetooth mode may not be compatible with some devices. 5. The AAA batteries are not included, you need to buy two by yourself. 6. For Smart TV or Smart Projector users, before purchasing,