AICase TWS Wireless Headphones Bluetooth 5.0 Wireless Earbuds Built-in Mic Mini Sweatproof Sport Headsets in-Ear Headset with Wireless Charging Case Note 10+ Input coupling: Direct current

Input coupling: Direct current

Built-in metal aluminum base for great cooling effect

or there are bubbles in the middle

superior save your time and free your hand

Also easy to use

AICase TWS Wireless Headphones Bluetooth 5.0 Wireless Earbuds Built-in Mic Mini Sweatproof Sport Headsets in-Ear Headset with Wireless Charging Case Note 10+ Input coupling: Direct currentPortable Charging Dock and Longer Battery LifeThe charging dock with built in 1500 mAh battery, it could recharge the earbuds 5 times and it can be charged automatically once the earbuds is put in the charging case. The base is fully charged for about 1. 5 hours,allowing you to enjoy your music up to 1 2 hours,and 100 hours of standby time Else the charging case can act as a power bank for charging mobile phones and other USB devices. Effortless