These convenient, low noise cell phone fan attachments are the perfect portable solution for those hot days when you need to cool down. Compatible with charged devices that have a MicroUSB connector and OTG functionality (not compatible with iPhone/iPad or devices that use a USB type C connector). This set of 6 includes one of each color: Black, Blue, White, Orange, Lime Green, Hot Pink. Measuring only 3.5" x 1" x 1.4" each, these can easily fit in your pocket, bag, handbag, school bag, lunchbox, or fanny pack. Perfect for outdoor sports and activities such as camping, BBQs, cycling, and fishing. Each MicroUSB fan comes individually packaged with instructions printed on the package. NOTE: Caution should be taken when using by avoiding contact with the rotating blade that may injure or cause damage. If the fan is not operating when plugged in, your phone may need the OTG function enabled. The easiest way to enable this function is to search for the term “OTG” in your settings and enable it. Specifications: Voltage: 5V, Rated Power: 1W, Motor speed: can reach 15000 RPM