Ausdom M08 Wired Wireless Bluetooth Stereo Headphones with MicBlack and Silver Great for travel: soft, comfortable, solid and foldable headset construction for long time use. Bluetooth V4.0 technology allows M08 to communicate with your Bluetooth enabled device within 10 meters range. Optional connection via 3.5mm audio cable for streaming music without worrying battery dead. Powerful and rich bass speaker brings you amazing audio enjoyment. HD call design with built in microphone, can support free hand talk.