Features 1.[Applicable Headphone] Wireless headphone adapter cable is suitable for Sennheiser IE80 IE80S IE 8 IE 8i and other headphones as well as headphones with compatible interfaces. 2.[Enjoy Music] Headphone BT adapter cable can upgrade your wired headphone to a wireless headphone making your headset more convenient and easy to connect to BT to enjoy music. 3.[One Click Switch Mode] Wireless headphone cable low latency codec ensures the highest wireless quality enjoy music without lag and lossless sound quality. One click switch between music mode and game mode. 4.[10H Talk Time and 8H Playing Time] BT headphone cable built in rechargeable lithium battery and ultra efficient BT 5.0 technology provides up to 10 hours of talk time and 8 hours of music playback. 5.[Ergonomic and Practical] Wireless earphone cable comes with corded earhook controller and integrated mic for calls volume and music playback. Compatible with phone laptop computer and other BT devices. Specification Item Type: Headphone BT Adapter CableCore Material: OFCApplicable to: For Sennheiser IE80 IE80S IE 8 IE 8i and other headphones as well as headphones with compatible interfacesBT: BT 5.0Transmission Distance: Approx. 10m / 33ftStandby Time: About 100 HoursCharging Time: About 1-2 HoursPlaying Time: About 8 HoursTalk Time: About 10 HoursBuilt in Battery: 110mAh Lithium Ion Battery (shipped with battery)Cable Length: Approx. 90cm / 2.9ftCable Diameter: Approx. 2.0mm / 0.08inColour: Black Package List 1 xHeadphone BT Adapter Cable1 x Charging Cable