Wireless Bluetooth Headset No Ear Movement Waterproof Conduction Neck Headset Bluetooth 5.1Features: Open-ear: This kind of earphone is designed in a not in-ear style, you dont need to wear it in the ear, making you feel more comfortable, and you can attention to the environment easily. Wireless: The bluetooth-compatible V5.1 ensures a stable connection and quick transferring, reducing latency and giving you a good listening experience. Noise cancelling: The equipped mic makes it easy for you to calls, keeping the sound and voice clear, and it can free your hands, suitable for driving and working Dual middle and low frequency sound, powerful bass, reduce distortion. Gently hang it on the ear to enjoy the long time use without pain, while paying attention to the outside voice, keeping the surrounding alert and improving safety.Product Description:Features:Shock conduction horn, shock your auditory nerve.The skeleton is bent without deformation and cannot be folded.Wearing glasses during sports learning does not affect wearing.Strong power reserves, from the morning to hear the sunset.Life grade waterproof and sweat proof, without fear of sweating.Classic three key operation, bid farewell to single key operation.Specification:Bluetooth Version: 5.1Transmission distance: 15mCapacitance capacity:130mahUse time: 8-10 hoursCharging time: 0.5 hoursSpeaker resistance: approx. 16mm/0.63inch 32.Sensitivity: 90db.Work temperature: -10-50.contain:1X headphones1X charging line1X instructions