.4GHz wireless connection: 2.4GHz wireless connection via USB receiver, plug and play, remote wireless control Voice control: Press the voice button on the remote control to search for the channel to be viewed by voice, easy to use. Built-in gyroscope: This air mouse can sense the change of direction and speed, and can be controlled by moving directly in the air. Comfortable grip: The design of the air mouse is very suitable for the palm, and the ergonomic design provides you with a comfortable handheld experience. Not easy to slip. Easy to use: 14-key + 47-key control, air mouse, easy volume control, page up / down, left / right mouse, etc., simple to use. Model: Q40 Wireless frequency: 2.4-2.4835Ghz Working temperature: -20 ℃ -65 ℃ Battery type: 500mAh 3.7V lithium battery Total power consumption: 63mA Standby power consumption: 58uA Number of keys: 61 Remote control distance: 8-10 meters (barrier-free distance) Charging port: USB color: White Material: ABS Package Contents: 1 * Remote control 1 * USB receiver 1 * USB charging cable 1 * Instruction Only the above package content, other products are not included. Note: Light shooting 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.