KZ ZST + KZ AZ09 IEM Bluetooth Adapter, Free Switch Between Wired and Wireless

The products include: KZ ZST Without Mic*1 + KZ AZ09 Bluetooth Module *1
[Free Switch Between Wired and Wireless] - KZ Bluetooth module is specially designed for Earphones with 0.75mm /0.78mm pins, making the wired headphones become wireless headphones in seconds, and getting rid of the bondage of wire harness. It allows you to switch between wired and wireless according to the needs of different scenarios. It also ensures the sound quality of the original headphones.
[High-Fidelity Sound] - Adopting bluetooth 5.2 technology, Bluetooth Module offers you an unparalleled audio experience with faster transmission speed, stronger connection stability. At the same time, AAC advanced audio coding transmission technology to greatly improve the quality of hearing and bring natural and clear sound.
[Long Battery Life] - Each earbud can get 6 hours playback from a single charge. 800mAh charging case supports 7 times of recharging for both earbuds, gives up to 42 hours continuous music time. Keep your music going all day even when you go out.
[Nice IEM Earphones] - KZ ZST is dual drivers IEM earphones with 1 balanced armature and 1 dynamic driver per side.Independent sound channel ensures the sound not be distorted and allows a better mix of high and low frequencies.The KZ ZST has excellent level of clarity and nice detail.