1. Using earplugs does not require any skill. Take out two earplugs from the charging case, they will automatically connect, and then enter the phone's Bluetooth settings to pair the earplugs. 2. Music charging anytime, anywhere, convenient to carry 3. Bluetooth earphones are sweat resistant. Ergonomic in ear design. They are not easy to fall off their ears and remain stationary, making them suitable for sports, running, driving, exercising, going to the gym, relaxing, traveling, and more. (Note: The charging case is not waterproof.) 4. Stereo music quality, super strong listening experience. 5. Noise cancellation technology can reduce environmental noise and echo, ensuring that you don't miss any part of the rhythm and enjoy music anytime, anywhere. Suitable as a Christmas gift, birthday/business gift, and public holiday. Transmission range 10 metersFunction power display, NFC function, voice control, support music, multi -point connectionStevid soundEar earbudWhether or not two -sided three -dimensional soundEndurance time 5 (hour)Form Factor In EarConnectivity Technology Bluetooth 5. 11. 【One Step Pairing】You don't need any skills to use earbuds. Pick up 2 earbuds from charging case, They will connect each other automatically, then enter mobile phone bluetooth setting to pair the earbuds. 2. 【 Music Time Charge On The Go】Thanks to the Bluetooth 5.1 technology, You get 4-5H continuous playtime when earbuds fully charged.  You can also use the charging case to charge your phone. Never worry about running out of power. 3. 【Waterproof】The bluetooth earbuds are resistant to sweat, water and rain. Ergonomically in-ear design. They are not easy to fall from ears and stay firm in place, Perfect for Sports, running, driving, workout, gym, relaxation, travelling and etc. (NOTE: The Charging case is not waterproof.) 4. 【 Stereo Music Quality】Superb listening experience with powerful bass and exceptional detail. Get an unrivaled Sound Quality & Call Clarity. Noise cancellation technology reduces ambient noise and echo, Ensure that you don’t miss any part of your rhythm and enjoy music everywhere. Ideal for Christmas gift, birthday/business present, public holiday. Note: 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.