Keep the heat in check with GYRO. Lightweight portable handheld fan that fits easily in bags and larger pockets, with up to 4 levels of speed for all types of hot days.Specifications:-- USB-C Input : 5V⎓2A- Battery Capacity : 4,000 mAh- Battery Life : 2 hours - 13 hours- Fan Speed : Up to 20,000 RPM- Charging Time : 5 hours- Includes Type-C charging cable & wrist strap