[Free Switch Between Wired and Wireless] - CCA BTX 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. Enjoy the HiFi audio with BTX.( *This product is only for bluetooth upgrade earhook, without earphones.) | [High-Fidelity Sound] - CCA BTX is fully upgraded with the latest Bluetooth 5.2 technology and stable Qualcomm QCC3040 chipset. The Bluetooth Module offers you an unparalleled audio experience with faster transmission speed, stronger connection stability. It also supports Apt-X decoding and fast lossless signal transmission. | [Long Battery Life] - Each earbud can get 5 hours playback from a single charge. 800mAh charging case supports 9 times of recharging for both earbuds, gives up to 45 hours continuous music time. Keep your music going all day even when you go out. | [Lightness & One Key Operation] - CCA BTX over-ear-fit wireless earhook adapter is around 20% much smaller than other ear hooks. The bluetooth hook weighs only 5g, which is light and has no pressure. Give you a small and light comfortable wearing experience. Each bluetooth earhook has one multi-functional press button which can receive calls,play or pause and switch music. Easy and simple operation. | [HiFi Music Mode and Game Mode] - Two modes are freely switched, Hifi music mode allows you enjoy the music in the shocking soundstage. The game mode gives you faster audio transmission speeds when you play games. | Applicable to: KZ ZS10 PRO/ZSN Pro X/ZSN PRO/ZAS/ZSX/ZSN/AS12/AS16/ZAX/DQ6, CCA CA16/C12/CRA/NRA/CA16 PRO