【HiFi Stereo Sound Quality】THOUSTA TWS-R6 offers a truly natural, authentic sound and powerful bass performance with 5mm large size speaker driver.Built in high quality noise reduction technology chip, can block out lots of surrounding noises during running, sports, jogging etc. HD binaural call can hear your family or friend much more clearly. 【120H Playtime with LED Digital Display】 Built-in 3000mAh rechargeable charging box keeps you free from the anxiety even if you far away from charging place. The lasting power allows you to continuously enjoy the music for a whole month with 5 hours of daily use and no need {url removed} can also be used as an emergency power bank for your smart phones or other devices.Kindly Note:When the LED display shows 99% indicates that the charging box is fully charged. 【TWS & Bluetooth 5.0, One Step Paring】 Pick up 2 headsets from charging box They will connect each other automatically, then only one step easily enter mobile phone Bluetooth setting to pair the earbuds. Adopt the most advanced Bluetooth 5. 0 technology,THOUSTA TWS-R6 Support HFP1.7,AAC,MSBC,SBC,HSP1.2,A2DP1.3,AVRCP1.6. 【New Slide-Cover and Ergonomic Design】 This new slide-cover design can make your easy to take out the earbuds.Ergonomic designed to fit comfortably in your {url removed} has 150 degree oblique ear shape which can prevent falling off, the ears does not feel painful when you wear it for a long time. 【IPX7 Waterproof】Our Bluetooth wireless earbuds has designed and provided favorable waterproof effect which can easily resist sweat and water. It’s ideal for sports, music and calls. Perfect for fitness travelling and etc