★Ergonomic Comfort-fit: Foldable and adjustable PU leather headband for noise reduction and comfort fit. ★Built in Microphone and Controls: Enjoy a completely hands free listening experience with a built-in microphone for high definition calls; Control your music or answer/end phone calls right from your headset with built-in controls. ★AUX Mode: Detachable 1.2 meters cable makes this headphone as normal wired headphones when the internal rechargeable battery is exhausted. ★Enjoy stereo music wirelessly: Great compatibility. Compatible with Bluetooth-enabled devices of cell phones notebook laptop and smart TV etc. Can be used as wired headphone when its in low power a wired 1.2m cable is available (for free). -What You Get: Gorsun E89 Bluetooth headphones Micro USB charging cable AUX cable User manual our worry-free 12-month warranty and friendly customer service.