Provide the best stereo Noise Suppression Microphone Provide superior high-fidelity sound Passive radiator subwoofer Using the included micro-USB charging cable for charging Rechargeable battery with playback time up to 5 hours Bluetooth wireless distance of 33 feet (10 meters) Wired: equipped with a standard 3.5 mm headphone jack equipment, such as iPods, the iPad, iPhone, etc. Color: red, blue, silver HD Bluetooth speakers (call) the Bluetooth pairing enter 0000 can be paired successfully.