1.[Compatible model] Compatible with bose wave sound touch music radio system I II III IV, fit for the for the 1,2,3 and 4th gen. Please note that the music system is NOT compatible with bose acoustic music system. 2.[Operable distance] More than 8 meters. A replacement remote control works as well as the original one. 3.[Easy to use] No program needed. Just install a battery (CR2025/CR2032) and it can work well( the battery is included ). 4.[Perfect replacement]A high quality replacement remote control which is available to meet your needs. , designed ergonomic for comfort. Besides,The music system remote control is robust and light, it is easy to install, and the button has a good elasticity, it is sufficient to lightly and comfortably press the button. This replacement sound touch music radio remote control can work as well as the original one. Perfect for everyone!