B7 Bluetooth-compatible Earphone Wireless Headset Hanging Neck Stereo Noise Reduction Universal 5.0 Sports Halter Earbuds With Mic black

--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;