USB Mini Fan Portable Micro USB Fan Electronics USB Phone Fan for Android Specification 1. Color: black ,white,yellow,blue,red,green(Hello friend, we accept your color request, if the color are unavailable now, plz allow us send you other colors instead) 2. Material: Plastic 3. Neight weight: 21g 4. Dimension for Fans: 42mm x 88mm (L x H) 5. Dimension for Micro Male Jack: 6mm 6. Working Voltage: 5V 7. Compatible Model: Mobile Power Bank; Android Cellphone (Mobile Phone Must Support OTG function) ; Tablet PC; Latop; Computer etc USB Devices. 8. Packing: Retail Package Feature 1. 2016 New II Portable OTG USB fans; 2. For both Iphone and Android Cellphone support OTG function ; 3. Multi colors can be choosed; 4. Unique bendable design,also has light weight; 5. Low Noise with low power consumption.