Specification: Item Type: Headphone BT Adapter Cable Core Material: OFC Applicable to: For Sennheiser IE80 IE80S IE 8 IE 8i and other headphones, as well as headphones with compatible interfaces BT: BT 5.0 Transmission Distance: Approx. 10m / 33ft Standby Time: About 100 Hours Charging Time: About 1-2 Hours Playing Time: About 8 Hours Talk Time: About 10 Hours Built in Battery: 110mAh Lithium Ion Battery (shipped with battery) Cable Length: Approx. 90cm / 2.9ft Cable Diameter: Approx. 2.0mm / 0.08in Colour: Black Package List:1 x Headphone BT Adapter Cable 1 x Charging Cable About this item [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. [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. [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. [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. [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. [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. [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. [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. [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. [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.