HJIAN Portable Clip-on Fan Personal Clip Fan / Table Fan with Built-in Rechargeable Battery for Office Table Fan Treadmill Clip Fan Baby Stroller Fan Clamp Fans (White) Exclusively sold by our HJIAN company, if the fan you received it not with our HJIAN logo, then you must bought a fake product, just report to Amazon. Powered by built-in 450 mA rechargeable battery. Please fully charge the fan for 5 hours before firstly uing. Clip fan and table fan 2 in 1. Can be stand on table surface or clip on any objects thinner then 3.5cm. Fan blade made from soft EVA material. It does no harm to finger or face. Fan blade made from soft EVA material. It does no harm to finger or face. With flexible gooseneck, can be adjusted to any direction and angle to enjoy the mild breeze of air. Designed for personal space. Touch sensitive switch. Easy to operated; No instruction needed.