About this article Fast and Stable Connection Advanced Bluetooth 5.1 technology ensures faster and more stable connection and transmission. Open the charging case and the true wireless earbuds will turn on and pair automatically. Worry- free for pairing problems. When using a single headphone, simply remove the other to achieve seamless conversion between single mode and twin mode. Clear & Loud Stereo Sound CVC 8.0 noise canceling technology provides clear sound. Wireless Bluetooth 5.1 headphones with excellent Hi-Fi stereo sound give you an auditory feast. With the built-in microphone, you can make calls or redial the last call. IPX5 waterproof withstands sweaty gym workouts. Enjoy music everywhere Up to 120 Hours of Play TimeThis wireless headphones Bluetooth headphones are equipped with built-in 80mAh battery that can last 4-5 hours after a single full charge. 2000mAh portable rechargeable case can charge Bluetooth earbuds about 25 times which has outstanding up to 120 hours playtime, standby for 280 hours. In addition, this charging case can act as a power bank for your phone or other growing devices. Smart LCD Digital Display On smart LCD digital display , you can check battery consumption display at any time. The charging case presents its battery from 1%-100%. There are separate power consumption indicators for the left and right headphones. Four grids in total, each grid represents 25% headphones (turns on when fully charged). Smart Touch ControlUser-friendly design and easy operation. By tapping the wireless headphones to answer / reject the call, hang up the phone, wake up Siri, music play / pause, previous / next track, volume up / down.