Features: Advanced Bluetooth-compatible 5.3 technology, turn on second-speed pairing, more stable transmission, strong anti-interference, low power consumption and durable. New optimized design, air conduction, safe and stable, comfortable to wear, even if you wear it for a long for time, you will not feel swelling and soreness, you can enjoy every moment calmly. High-quality dynamic stereo sound, powerful transmission power, and synchronization of sound effects and pictures will bring you a better gaming experience and let you be on the scene. Lightweight, only weighs about 21 grams, high-quality cable for shell material, flexible and for tough, not afraid of bending, easy to use. Type-C charging port, gorgeous color design, widely used in indoor and outdoor sports such as cycling, running, walking, online learning, leisure and entertainment. Specifications: Material: ABS Earbuds: Approx. 5x2x2 for cm/1.96x0.78x0.78 inch Color: White, Black, Green(optional) Item Name: Wireless Sports Earphone Model: B8 Bluetooth-compatible Version: BLE 5.3 Wireless Connection Distance: Less than 15 Meters/49 ft Charging Port: Type-C Interface Active Noise Cancellation Calling: ENC/CVC8.0 Impendence: 24 Frequency Response: 20Hz-20KHz Input: for DC 5V/100mA Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Pair B8 Wireless Sports Headsets 1 Piece Charging Cable 1 Piece User Manual