[HD Call Experience] Adopts CVC 6.0 technology, with high sensitivity, low impedance, noise reduction, noise reduction and anti-interference functions, ensuring clearer and more fidelity sound during calls, whether for you or the other party.[Universal design for left and right ears] Ergonomic shape, the cochlea can rotate 180 degrees, suitable for left and right ears, bringing all-day comfort experience.[Long-lasting battery and waterproof design] IPX7 waterproof and sweatproof, strong battery life, 2-3 hours of charging can support 30 hours of music or talk time, and standby time is up to 365 days.[Bluetooth 5.4 stable connection] Achieve stable connection with the device through Bluetooth 5.4, support free movement within a range of 10 meters, and connect two devices at the same time with multi-point technology.[Wide compatibility] Compatible with all Bluetooth-enabled devices, suitable for a variety of scenarios such as phone calls, providing convenient hands-free operation.