Upgraded Bluetooth 5.3 and Auto Pairing: Powered by twin Wireless 5.3 technology, these noise cancelling wireless earbud support binaural synchronous transmission, the connection speed is increased by 100% and ensure stable connection and super-low power consumption. Once opening the charging case, the ear buds will connect each other automatically after the first connection set..Hi-Fi Stereo Sound and CVC8.0 HD Call: Wasart Bluetooth earbud adopt a 13mm graphene composite driver which has a wider soundstage, detailed trebles and well-defined bass. Bluetooth earphones with 4 ENC mics which used CVC8.0 technology which can suppress 80% of the interfering background noise. J52 Wireless headphones in ear makes your communication more clearer..Dual LED Display and 32H Playtime: Wireless earphones bluetooth with dual digital power display, easy to know the remaining power of earbud wireless bluetooth and case while opening or closing the case. 8 hours of listening time for a single charge and another 3 time recharges from the charging case extend the listening time up to 32 hours. Equipped with USB-C cable offers you more quick and stable charging..Ultralight Design and Comfort Fit: The pocket-sized charging case does not take up any space to carry, and you will not have any stress on wearing sports earbud. Earbud wireless headphones are designed to fit the contours of the human ear with a curved structure that is the same to the shape of the ear canal, making them comfortable to wear and not falling out when running, gym. Running earbud use IP7 nano-coating technology, which can protect internal components from liquids and ensure a longer life..Touch Control and Wide Compatibility: Wasart in ear headphones built in capacitive touch sensing technology allows you to control volume +/-, answer/hang up/reject calls, music control and activate voice assistant with simple touch. Wireless earphones compatible with ios/android system devices, and most Bluetooth-enabled devices. No trouble pairing your phone with the earbuds whatever phone model you're using.