Bluetooth 5.0: with advanced Bluetooth 5.0 technology.Bluetooth earbuds support ultra-stable connection, faster pairing and universal compatibility.Provide sincall stereo.You can feel free to chat with your burning man.One-step pairing: Open the cover automatically after connecting the first connection.Single LED display: Charging case with LED power display shows reuse of battery to make sure you know where the charge is 25 hours play time: True wireless earbuds scan lasts more than 5 hours of playtime on a single charge.while portable charging case power can last up to 25 hours with good sound quality : Our wireless earbud sea high-performance dynamic drivers and composite polymer vibrating diaphragm give you great sound and you can feel more realistic music.