[TWS & NEWEST BLUETOOTH 5.0] Saimly wireless earbuds adopt the most advanced Bluetooth 5.0 technology which provided more stable connection, faster paring(just need 1-2 seconds ) and universal compatibility. [Hi-Fi Stereo Sound Quality] Wireless earbuds with 10mm large size speaker driver produce crystal clarity and deep, resonant bass, you can feel the more realistic music. Enjoy your music everywhere even in a loud environment. [One Step Pairing] Pick up 2 wireless earbuds from charging box, they will connect each other automatically. Only one step easily enter mobile phone Bluetooth setting to pair the earbuds. Then automatically connect the last-paired device. [All Day Listening & Charge on-the-go] Saimly Bluetooth headphones get 4-6 hours playtime from a single charge(only 1H charge time) and 60-100 hours standby time in the mini portable charging case.