Features: Wireless earbuds adopts the latest bluetooth-compatible 5.3 chip that provides a more stable and fast connection for headphones. It has an APTX surround sound, which can effectively isolate noise and make the sound clearer. It is wireless and unrestrained, and can'for t be shaken off by strenuous sports such as running and basketball. It is specially designed for sports people; Soft silicone ear hooks, with earplugs of different sizes, makes wearing more comfortable; IPX7 waterproof design protects your bluetooth-compatible earphones from sweat, splashes and sudden rain; Specifications: Material:ABS Color:Black Bluetooth-compatible Version:5.3 Operation Range:About 15m/49.21in Charging for Case Battery Capacity:500mAh Earphone Battery Capacity:40mAh waterproof Level:IPX7 Package Includes: 1x Wireless Earbuds 1x Charging for Case note: Please allow 1-2cm errors due to manual measurement,pls 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.