Attributes Color: white/green/pink Material: ABS/electronic components Weight: about 135 grams excluding packaging Current: 5V/1.0A Rated input power: 5WW Battery capacity: 2000 mAh Battery life: 3h - 10h Charging time: about 2 hours User instructions 1. Please fully charge before first use. 2. Press the power button to turn on the device. 3.3 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.