Made of TPE material, it is skin-friendly and non-irritating.Compared with the previous bluetooth-compatible V4.2 wireless headphones, you can get 2 times the transmission speed, a more stable connection without losing signal or music by using this bluetooth-compatible 5.0 headphones.With bone conduction technology, you don& 39;t need to insert the headphones into your ears, so when you listen to music on your mobile phone, you can hear the surrounding sounds.The lightweight body design and rubber hanger can create the wearing stability of the golden triangle, so the long-term wearing will not cause pain and fall during exercise.The large dynamic diaphragm is used for directional audio transmission without loss, thereby generating a realistic surround sound field.Item Name: Bone Conduction HeadsetBluetooth Version: 5.0BT Distance: 10-15MSpeaker Type: Bone Conduction Technology SpeakerFrequency: 200Hz-8KHzMicrophone Sensitivity: -42dbBattery: 130mAh(Included)Playing Time: 5 HoursTalk Time: 5 HoursHeadphone Charging time: 1.5 HoursStandby Time: 5 DaysFeatures: bluetooth-compatible V5.0, Bone Conduction Technology, Comfortable to WearSize: 8cm x 8cm x 3cm/3.15" x 3.15" x 1.18" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x G-100 Bone Conduction Headset1 x User Manual1 x Charging Cable