--Silicone coating protects the earphones from sweat and rain
--Bluetooth-compatible 5.1 technology ensures a smart and stable connection within a 33-foot transmission range
--With up to 10 hours of playtime and 260 hours of standby time
--With a speaker size of 6mm, the B7 is designed for sports use.
--Sweat and rain proof, enjoy jogging, hiking and exercising without worrying about exercising in the rain;