Edifier USA e25HD Luna Eclipse HD 2.0 Bluetooth Speakers with Digital Optical Input (White) Powered digital speaker system for TV and home entertainment Bluetooth pairing capability with Bluetooth enabled devices Versatile connectivity: Bluetooth 4.0, Digital optical and Auxiliary input Touch sensitive controls for volume, play/pause, previous/next track and standby Electronic crossover & dedicated power amp to each tweeter & bass driver and DSP and DRC for enhanced audio performance and distortion control