Description: This earphone would not fall down while intense exercise because of its ergonomic ear hook design. What this earphone can offer you is bone conduction design, which can efficiently reduce the harm to eardrum and bring you comfortable wearing experience. Using high-quality ABS material, this product is lightweight and durable to use. The length of this product is 15.8cm, the width is 10cm, and the height is 3.5cm. Featuring high fidelity and low distortion, this earphone can provide you with wonderful listening experience. It is suitable for running, sports, fitness, music, video call, etc. The opening design of the earphone enables you to pay attention to surrounding voice while listening to music, which can efficiently ensure your safety. Item Name: Bone Conduction Headphone Material: ABS Model: V11 Color: Black Bluetooth-compatible Version: 5.0 Transmission Distance: 10m (Barrier Free) Battery Capacity: Built-in 150mAh Rechargeable Battery (Included) Charging Time: 2 Hours Music Time: 6 Hours Standby Time: 168 Days Charging Interface: Type-C Frequency Response: 20Hz-20KHz Features: Waterproof, High Fidelity, Bone Conduction Size Details: 15.8cm x 10cm x 3.5cm(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 Headphone 1 x Charging Cable 1 x User Manual