Description:Dual noise reduction microphones make your calls clearer. IPX8 waterproof grade design is very suitable for swimming.With built-in 280mAh battery and 8GB memory card MP3 player, it provides you with up to 10 hours of music playing time and can store about 1500 songs.It is made of high-quality ABS material, which is lightweight, flexible and anti-bending. The functions of play/pause, volume +/volume -, previous/next track, switching playback mode (Bluetooth-compatible/MP3) and switching songs can be realized through simple control buttons.The length of the product is 13cm, the width is 10cm and the height is 4.5cm.The innovative bone conduction technology is different from the traditional headphones in transmitting sound through the ear canal. It can transmit sound through the cheekbones to protect your hearing. During wearing, your ears will maintain the perception of environmental sound without pressure or obstacle. The latest Bluetooth-compatible 5.0 technology can pair with your device stably and quickly, and ensure a stable connection with your mobile phone/tablet/computer and other devices with Bluetooth-compatible, with more stable connectivity, stable signal up to 33 feet and barrier free space.Item Name: Bone Conduction HeadphoneMaterial: ABSModel: Q50Earphone Type: Wireless Bone ConductionWireless Version: V5.0Local Music Format: WAV,FLAC,APE,MP3,WMAMemory Capacity: 8GB-TF CardOperating Frequency: 20Hz-20KHzSpeaker Diameter: 11.2 mmSpeaker Impedance: 0.8ohmBattery Capacity: 280mAh (Included)Music Playing Duration: About 10HCall Duration: 6HStandby Time: 15 DaysCharging Time: 2 HoursCharging Port: Magnetic ChargingWireless Transmission Distance: 10mWaterproof Grade: IPX8Features: Hands-free, Bone Conduction, Long Battery LifeSize Details: 13cm x 10cm x 4.5cm/5.12" x 3.94" x 1.77" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bone Conduction Headphone1 x Charging Cable1 x User Manual