The Legami Mini Fan For Phone is an essential accessory for the summer. No need for batteries, simply connect to your smart device to enjoy immediate relief from the heat.Whether you are travelling, resting on the beach or having fun at a concert all you need is your iPhone, Smartphone or Tablet with a micro USB, USB Type-C and Lightning adapter to enjoy this fantastic portable mini fan.. The perfect gift for anyone. Compatible with all Apple products equipped with a Lightning connector. For smartphones and tablets with micro-USB or USB Type-C: Verify that your device supports OTG. Voltage: 5 V