2.4G Wireless Connection: 2.4G wireless connection via USB receiver, plug and play, enjoy long-range wireless control up to 10 meters. Voice Control: Press the voice button on the remote control to search for the channel you want to see, easy and convenient to use. Built-in Gyroscope: This air mouse can sense the change of the direction and speed so you can move directly in the air to control it. Ergonomic Design: Arc design at the back of the air mouse, perfectly fits your palm, providing comfortable handheld experience. Convenient to Use: 17 keys air mouse, easy to control volume, page up / down, Mouse left / right, etc. Just sit back on your couch and enjoy. Colour:Black Material:plastic Package Contents: 1* Remote Control 1* USB Receiver Note: Without battery 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.