100% brand new and high quality Features:After being fully charged, you can use your headphones continuously for a long 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't miss any part of your rhythm and enjoy music anywhere.Earphone head with soft material will not cause other bad conditions even if you wear the earphones for a long time.Portable and lightweight, does not occupy your space, easy to carry around anywhere you go.Ideal for Christmas gifts, birthday gifts, business gifts, etc. Specification:Product name: bone conduction Bluetooth-compatible headsetBluetooth-compatible version: 5.0Working frequency: 20HZ-20KHZTransmission distance: 10 metersWorking time: about 6 hoursCharging method: USB interfaceCharging time: about 1.5 hoursPlay time: about 5 hoursStandby time: about 120 hoursMaterials: ABS+ PCSize: app.21.0 cm x 15.0 cm x 5.5 cm/8.27x5.91x2.17inOptional Colors: Gray, Black, RedQuantity: 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 Cable1 x Manual(other accessories demo in the picture is not included.)