Description de chez Amazon UK : - Turn pages, scroll lyrics and tabs - Advance slides for presentations - Capture video, photo, and more! - Silent: Touch-switch technology that works like the button on a microwave. - Max Battery Life: A rechargeable battery provides 150-200hrs play time with a single charge. Automatically turns off when the host tablet or computer is turned off. - Max Range: At 150+ feet, AirTurn leads the industry with maximum operating range using Bluetooth 4. - Endless Apps: Hundreds of compatible apps for reading music/lyrics/tabs, triggering backing tracks/effects, MIDI, video/lighting and more!