Polar Power Bank TWS The back side has measuring

The back side has measuring scale to help track the volume added into the bag

Fast charge feature require to have fast charge capable device with fast charger adapter

Logo can be imprint on earbuds and charging box

easy to clean and is microwave

The clamp can automatically close and hold the phone once you place the phone inside the holder

Polar Power Bank TWS The back side has measuringThe Polar power bank was designed with curved edges, gives it a very sleek and sophisticated look. The power bank is 4000mAh capacity and has large flat surface that has aluminum finish making it great for silkscreen, laser engraving or full color imprint logos! The top of the power bank includes 4 indicator lights to show you how much battery percentage is remaining on the power bank. Five standard colors with dual USB port design with output of 1A