1. Features: Bluetooth earphones that don't require earplugs. No need to insert them into the ears, providing comfortable wearing experience. 2. Bluetooth V4.1, easily compatible with smartphones and most Bluetooth devices. 3. Built - in rechargeable battery, with a standby time of 160 hours and a playback time of 5 hours. 4. CVC6.0 noise reduction technology, clear calls, low distortion, and provides pure sound. 5. Multi - point pairing (supports connecting 2 Bluetooth devices). 6. Supports voice prompts (English), with a portable and fashionable design. 7. Built - in microphone, real - time battery capacity display for iOS. 8. Simple to operate, freeing your hands. 9. Made of lightweight PET material, only weighing 8 grams, as light as a feather. 10. Package includes: 1 x bone conduction Bluetooth earphone, 1 x instruction manual, 1 x charging cable.