Current: 5V/1.0A Rated input power: ≤5W(W) Battery capacity: 1800 mAh Battery life: 3h - 10h Charging time: about 2 hours User instructions:1. Please fully charge before first use. 2. the power button to turn on the device. 3. 5 Wind blocking volume adjustment, click to adjust 4. Click Close. Notice 1. Do not insert your hands or foreign objects into the air inlet or outlet to avoid accidents or product damage. 2. Please do not use a power supply other than DC5V-1A, as it may cause the product to heat up or damage the product. 3. Do not put the product into or near a fire source to avoid accidents and possible product damage. 4. Children need to use it under adult supervision. Colour:As Shown Material:plastic Package Contents: 1 x waist-mounted fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.