brand new and high quality Features: After being fully charged, you can use your headphones continuously for a long for time. Bone conduction open tone, the sound is transmitted directly to the ear through the bones without passing through the eardrum, reducing the damage to eardrum hearing and protecting hearing. Earhook earphone design, not easy to fall from ears and stay firm in place, suitable for sports, running, driving, exercising, gym, relaxation, travel and so on. Incredible stereo music quality, exceptional details bring a good listening experience, get excellent sound quality and call clarity. Intelligent noise reduction function reduces ambient noise, ensure that you don'for t miss any part of your rhythm and enjoy music anywhere. Earphone for head with soft material will not cause other bad conditions even if you wear the earphones for a long for time. Portable and lightweight, does not occupy your space, easy to carry around anywhere you go. for Ideal for Christmas gifts, birthday gifts, business gifts, etc. Specification: Product name: bone conduction Bluetooth-compatible headset Bluetooth-compatible version: 5.0 Working frequency: 20HZ-20KHZ Transmission distance: 10 meters Working time: about 6 hours Charging method: USB interface Charging time: about 1.5 hours for Play time: about 5 hours Standby time: about 120 hours Materials: ABS+ PC Size: app.21.0 for cm x 15.0 for cm x 5.5 for cm/8.27x5.91x2.17in Optional Colors: Gray, Black, Red Quantity: 1set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Bluetooth-compatible Earbud 1 x Charging Cable 1 x Manual(other accessories demo in the picture is not included.)