-2.0 Digital Stereo Hi-Fi audio The SPK-800 guarantees high-level cradle audio in every situation via Bluetooth, which perfectly reproduce all the subtleties of the high and medium frequencies, -Enjoy all music sources The SPK-800 transfers all music from any A2DP music player including cellphone, iPod, MP3, MP4, Laptop, PC and other music players. Or any device with a Bluetooth Dongle. Besides, The SPK-800 also accepts all analogue audio Devices connected to the line in jack (CD players, tuners, Etc. ) and automatically detects the music source. -Never miss calls while enjoying music Music will be paused and the SPK-800 will alert you that there is an incoming call. Answering calls and ending calls are easy with touch controls. Music will be continued automatically after calls. -4W digital amplifier The 4W Class-D amplifier controls the two drivers independently, ensuring that audio output is available at all times for high-level listening quality. The digital technology produces an unrivalled level of precision without any background noise, while considerably reducing distortion at high volume. -3rd generation Hi-Fi speakers-Touch-sensitive user interface -Play stereo music from any A2DP+AVRCP source -Aux line in for portable music players-Built-in stereo Bluetooth transfer technology -Built-in microphone with DSP for true handsfree telephone -Dual color LED to show the charge, low battery, standby & communication. -Up to 25 meter wireless range-Dimention: 148x45x45mm-Output power: 4W-Functions: -Switch on / off, Pairing -Transfer stereo music from any Bluetooth enabled PDAS, cellphones, PCS and laptop-Take a call, end a call, and reject a call -Muting, volume adjustment, voice recognition -Redialing and call waiting -Dedicated sound in speaker for low battery, switch off /on, pairing, volume adjustment, voice activation.