description: this 2.4ghz wireless remote controller is specially designed for easy control of smart tv, android tv box, pc and more devices. plug and play, simple and convenient. it will bring you much convenience. features: 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. note: 1. voice control function can only be used on the tv box with google voice assistant. for smart tv or smart projector users, before purchasing, please make sure that your tv or projector can be connected to a mouse and use normally (can test using a mouse).dimensions : 14.8 x 4.7 x 3.1 cm; 60 grams