Product Details Bluetooth 5.3 and Fast Auto Pairing With advanced wireless Bluetooth 5.3 technology, the wireless earphones will automatically connect to your device as soon as they are taken out of the charging box. Low latency and stable signals ensure a smooth use experience when watching movies or listening to music. HD Stereo Music and Clear Calls This dual earphone Bluetooth is equipped with a 16.2mm speaker driver unit to produce high-fidelity sound quality with powerful bass, clear mids and bright highs. Lossless sound quality provides an immersive listening experience, real-time perception of external sounds, and unimpeded performance in music, sports and communications. Clear Calls and Intelligent Voice Control High-quality call performance and voice assistant interaction achieved through the built-in microphone make life easy, allowing you to be confident in online meetings anytime, anywhere. ENC Noise Reduction Dual MIC accurately picks up and amplifies human voice, effectively reducing external noise interference, and enables clear high-definition calls even in noisy environments. Safe and Comfortable Ergonomic design, earmuff-style flexible hooks are suitable for exercise without worrying about falling off. The weight is borne by the top of the ear rather than the ear canal, allowing you to exercise for longer periods of time without pain and fatigue.