Features:--Great invention one Conduction Headphones are designed to transmit sound through vibrations in the human both ears and help people with hearing loss.--Product Configuration: Built-in 160 mAh lithium battery takes 2 hours to be fully charged standby for 10 days listen to music or answer the phone for 6 hours, connection distance is about 10m.--Usage Scenario: Bone Conduction Headphones are sturdy and sweat proof, suitable for running, cycling,fitness, hiking, rock climbing, and driving. --Antiperspirant Design can reduce the production of Bacteria to protect the ear.--Comfortable and Safe:The Bone Conduction Headphones using blue-tooth 5.0 wireless connection, don't need to cram the receiver in the ear canal can listen to the music and answer the Phone, and your ears can hear the sound of the surrounding, very safe. Specification:Model: V10Color: Space Silver/BlackMaterial: Titanium Alloy + TPE Soft Rubberblue-tooth Version: V5.0Effective Range: Approx.10M (33FT)Frequency Response Range: 20 Hz~20 KHzBattery: 160 mAhCharging Voltage: DC 5VCharging Type: Micro-USBCharging Time: 2 HoursPlaying Time: 6 HoursStandby Time: 10 DaysWaterproof Level: IPX5 Package Included:1 x Bone Conduction Headset1 x USB Cable1 x User Manual