Feature: 1. Enhanced Compatibility: Compatible with 2 pin 0.78mm in ear earbuds, such as for QDC all models, for KZ ZSN, ZSN Pro, ZSN Pro X, ZS10, ZSX, for UE RRM, 5Pro, 11Pro, 18Pro, for CCA CA4, CA16, A10 and more. 2. True Wireless Experience: Easily convert your wired earphones into wireless ones by connecting the Bluetooth headphone adapter cable, allowing seamless Bluetooth wireless connection to your devices. 3. Superior Wireless Quality: With Bluetooth 5.4 and low latency codecs, you can enjoy excellent sound with improved synchronization for a no lag music listening experience. 4. Ergonomic Design: Equipped with pre shaped ear hook for a secure fit, the controller and integrated microphone make this bluetooth wireless adapter cable easy to control calls, volume, and music playback. 5. Long Lasting Battery Life: Compatible with smartphones, tablets, laptops, and other Bluetooth stereo transmitters, the built in rechargeable li ion battery provides up to 39 hours of playtime (volume at 75%). Specification: Item Type: Bluetooth Headphone Cable Adapter Material: TPE, OFC Bluetooth: Bluetooth 5.4 Transmission Distance: Approx. 10m/32.8ft Built in Battery: 180mAh li ion battery (included) Battery Life: 39 hours (volume 75%) Charging Time: Approx. 2 hours Color: Black Application: Suitable for headphones with 2 pin 0.78 mm connector interface, such as the following headphones: for QDC: Compatible with all for QDC headset models for KZ: for KZ ZSN, ZSN Pro, ZSN Pro X, ZS10, ZSX, AS12, AS16, ZS10 PRO, ZSX, ZAX, ASF, ASX, ZS10 Pro, ZST X, EDX, EDX PRO X, ZAR, DQS, D Fi, Krila, PR1 PRO, PR2, ZEX, EDA for UE: for UE RRM, 5Pro, 11Pro, 18Pro for CCA: for CA4, CA16, A10, C12, CRA, C10 PRO for TRN: for ST1, VX, BA5 Others: for EM6L, for Waner S.G and other headphone models with compatible interfaces. Package List: 1 x Bluetooth Headphone Cable Adapter 1 x Charging Cable 1 x Storage Pouch