Brand SSJ This mini air cooling apparatus boasts a compact size,making it perfect for placing on desks, study tables, office workstations, or even small nightstands. Equipped with a high - performance micro fan and an evaporative cooling system, the apparatus delivers effective localized cooling. The apparatus comes with a built - in rechargeable battery that supports USB charging. You can easily charge it using a computer USB port, power bank, wall charger with a USB interface, or even a car USB charger. Designed with noise reduction technology, the mini air cooling apparatus operates at a low noise level