Bluetooth(R) 2.1 with A2DP stereo profile; Pairing via voice prompts; Hands-free speakerphone for calls; Echo-canceling microphone; Streams audio up to 30ft; Protune speaker with deep bass; 6 buttons on top of speaker for easy access & full control of music & calls; Rechargeable battery with up to 5 hours of continuous playback; 3.5mm aux input for connected non-Bluetooth(R) devices; Includes mini USB cable; Black;