Feature: 1. Wireless Function: Wireless earphone cable can upgrade your wired headphones to wireless headphones, making your headphones more convenient and easy to connect to BT for music enjoyment. 2. Superior Sound Quality: BT headphone cable uses a low latency codec to enjoy lag free music and lossless sound quality. The headphone cable supports two simultaneous BT connections for two mobile phones. 3. Two Modes: Headphone cable with music mode and gaming mode, switchable at the touch of a button, music mode provides lossless HD music for music lovers and low latency gaming mode for gaming enthusiasts. 4. Long Standby Time: Wireless headphone cable with 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. Easy to Use: Wireless earphone cable is ergonomically designed with a flexible cable earhook, controller and integrated microphone for calls, volume and music playback. 6. Compatible: Headphone cable is suitable for in ear headphones with a 2 pin 0.78 mm/ 0.03in pin configuration. It is also compatible with mobile phones, tablets, computers and other BT devices. Specification: Item Type: Wireless Earphone Cable Wire Core Material: Oxygen Free Copper Size: Line Length: Approx. 90 cm/35.4in Wire Diameter: Approx. 2.0 mm/0.08in Colour: Black BT: BT 5.0 Transmission Distance: Approx. 10m/32.8ft Standby Time: Approx. 100 Hours Charging Time: Approx. 1-2 Hours Play Time: Approx. 8 Hours Talking Time: Approx. 10 Hours Internal Battery: 110mAh Lithium-ion Battery (Shipped with Battery) Applicable: In Ear Headphones Compatible with 2 Pin 0.78 mm Pin Configurations, Such As the Following Headphones. For KZ: ZSN ZSN Pro ZSN Pro X ZS10 ZSX AS12 AS16 For UE: UE RRM UE 5Pro UE 11Pro UE 18Pro For CCA: CA4 CA16 A10 C12 For TRN: ST1 VX BA5 For QDC: Compatible with All Models Others: For KZ ZSN ZSN PRO ZSN PRO X ZS10 PRO ZSX AS12 AS16 ZAX ASF ASX ZSNPRO ZSNPROX ZSNPRO X ZSNPRO X ZS10PRO and Other Interface Compliant Headsets. Package List: 1 x Wireless Earphone Cable (Battery Included)1 x Charging Cable Note: Please allow for some errors in manual measurements.