Sports Headset Air Conduction Bluetooth Headset Stereo Non-in-ear Running Headset SE3

Color: Black Bluetooth protocol: 5.0 Transmission range: 10 meters Chip Type: Jerry Waterproof performance: life waterproof Whether single ears: bilateral stereo Battery life: more than 8 hours Functions: noise reduction, long battery life, call function, voice control, music support Material: PC + ABS Usage: Hanging ear type Mold Type: Private Mold Style: Retro style