Note: Please allow some errors due to manual measurement. Specification: Item Type: Headphone Cable_x000D_Core Material: Oxygen Free Copper_x000D_Colour: Black_x000D_Line Length: Approx. 90cm/35.4in_x000D_Wire Diameter: Approx. 2.0mm/0.08in_x000D_BT: BT 5.0_x000D_Transmission Distance: Approx. 10m/32.8ft_x000D_Standby Time: About 100 Hours_x000D_Charging Time: About 1-2 Hours_x000D_Playing Time: About 8 Hours_x000D_Talk Time: About 10 Hours_x000D_Built in Battery: 110mAh Li ion Battery (Included)_x000D_Applicable: for Technica E40 50 70, for Ls200 300 400 50 70, for CKS1100, for CKR90, for CKR100 and a Series of Earphones with A2DC Interface, As Well As Earphones with Compatible Interfaces Features: 1[Easy to Connect] Headphone BT adapter cable, can upgrade your wired earphones to wireless earphones, make your earphones more convenient, easily connect to BT to enjoy music, easy to use. 2[High Performance] The low latency codec ensures the highest wireless quality of BT, the music mode and game mode can be switched with one click, the music mode provides lossless HD sound quality, suitable for music lovers, and the low latency game mode is very suitable for game lovers. 3[Long Standby Time] The headset BT adapter cable has built in rechargeable lithium battery and ultra efficient BT 5.0 technology, which can provide up to 10 hours of talk time and 8 hours of music playback. Support 1 for 2 function, can connect two BT mobile phones at the same time. 4[Practical] The BT headphone cable is ergonomically designed with a flexible cord earhook, controller and integrated microphone for calls, volume and music playback. Widely compatible with headphones BT adapter cable is compatible with mobile phones, tablets, computers and other BT devices. 5[Applicable] The headphone cable is suitable for a series of A2DC interface headphones such as for Technica E40 50 70, for Ls200 300 400 50 70, for CKS1100, for CKR90, for CKR100, as well as headphones with compatible interfaces. PackageList: 1 x Headphone BT Adapter Cable 1 x Charging Cable