Features and specifications:Key features:• Flashing LED• Unique shape and flexible• Suitable for laptop, desktop PC• Soft foam blade• Powered by USB port• Mini shape for easy carrying• Noiseless design won’t disturb your work• Makes you feel more comfortable at workSpecifications:• Material: Metal alloy• Length: 40 cm (approx.)• Fan diameter: 88 mm (approx.)• Color: Silver• Net weight: 60 grams Tips: The usb fan work with DC 5V and 330mah power , dont let it working with power bank and wall charger above 5V and 330mah . How to use:1) Connect