Otium Bluetooth Earbuds Wireless Headphones Bluetooth Headphones, Sports Earbuds, IPX7 Waterproof Stereo Earphones for Gym Running 15 Hours Playtime Sound Isolation Headsets,Black

True HD High Fidelity Sound: Update Bluetooth Headphones own latest Bluetooth 5.3 technology and IMPROVE acoustic components that produce incredible sound quality with deep bass and crystal clear treble.Also we have upgraded the bluetooth name from "Otium" to "U18", it will more conveniently to search and connect with the headphones.