Bluetooth 4.0 Wireless Hi-Fi Stereo Headphone Foldable Over-ear Headsets with Mic Gaming Headphones Built-in Mic Mode for PC/ Cell Phones/ TV-Blue BLUETOOTH STEREO HEADPHONE--Versatile Hi-Fi stereo headphone with Mic can be used both wired (via the 3.5mm audio cable) and wirelessly via bluetooth 4.0+EDR, allows M07 to communicate with your Bluetooth-enabled device within 33ft range. Applies to cell phones, computers, televisions. EXTRA-LONG PLAYTIME--Build-in 250mA rechargeable battery, provide about 14 hours music playing time and more than 150 hours standby time, keeping music long time. FOLDABLE & LIGHTWEIGHT DESIGN--Bluetooth 4.0 chip offers you great listening experience in 30-feet working distance with strong signal. Freedom enjoys your favorite music without any noise. AMAZING SOUND--Full range sound with powerful and rich bass speaker transmit high fidelity and detailed wireless sound to your ears, creating an immersive experience. This Wireless bluetooth headphone bring you exhilarating audio feelings. SMART BUILT-IN--Its built-in microphone and controls for phone calls, volume, and music playback. Moreover, music will automatically pause when you receive an incoming call.