From JisuLife
• 4 wind speed• desktop stand • powerbank output function• type-c input• ultra-slim size and light weight• input: 5.0v=2.0a • output: 5v-1a• battery capacity: 4500mah (16.65wh/3.7v)• fan power: 4w max• fan speed: 3m/s max• battery cell: lithium-ion battery• charging time: 4-6hours• usage time: 5-18 hours (depending on the service at different levels/usage scenarios)