Ergonomic designed earbuds, comfortable for long time wearing. Cool Bluetooth headset with good sound quality. Avoids the noise from external sources and can hear the music clearly in noisy environment. Active Noise Cancellation uses noise-cancelling speakers to reduce unwanted background noise. 10m barrier-free transmission the signal connection is stable within 10m. Enjoy the freedom of unlimited restraint. Easy to carry and comfortable to wear. One button control for track adjustment for phone call, play, redial, simply a tap to pair, pause or answer/reject a phone call. IPX-7 Waterproof Earbuds High-level water-resistant makes it suitable for sports to prevent water ingress. Ideal for out at the gym/singing, Running, Sport, Jogging, Cycling, Driving, Gym Exercise, office and Relaxation. The latest 5.0 Bluetooth+EDR with TWS technology, call effect, compability and so on significant improvement. Automatic boot pairing. Remove the headphones from the charging bin will automatically boot/pair/connect back.