Mini USB Air Conditioning minimalist card holder which is comfortable to the

which is comfortable to the touch and durable

easy to carry in bag

but the air resistance will also become greater

When placed on the desk

Mini USB Air Conditioning minimalist card holder which is comfortable to theStay cool this summer! Product: Mini USB Air Conditioning. Make you feel more comfortalbe! Max power: <20W Voltage(V): 5V Size: 12*7*3 cm Application: <10 Material: ABS+electronic component Color: Blue, Black, Rose, Pink, Green, Purple Instructions: Step 1: Fully charge before first usage(Indicator light turn to green). Step 2: Open the backside cover and take out the sponge. (Rinse sponge with detergent before first usage). Step 3: Wet the sponge by