3300mAh Handheld Cooling Fan with 3 Speeds, Cold Compress Function, Silent Cooling & Portable Desktop Design - (L7.5 x W5.5 x H18.5)cm / (L3.0 x W2.2 x H7.3)inch Features: Enjoy a breeze of your choice with 3 adjustable fan speeds It has a cold compress function, giving you more comfort during the summer The semiconductor cooling system, coupled with high-conductivity aviation aluminum, achieves a speedy 20℃ temperature drop in just 3 seconds Experience serene cooling with the ≤20dB silent design. Perfect for relaxation, work, or sleep without any disturbance With its lightweight and compact design, this fan easily fits into your bag, making it ideal for both desktop and handheld use Specifications: Material: ABS*aluminum*zinc alloy Working voltage: 5V Charging current: 1A Battery voltage: 3.7V Battery capacity: 3300mAh Output power: 4W Charging time: 2.5 hours Weight: 203g Size: (L7.5 x W5.5 x H18.5)cm / (L3.0 x W2.2 x H7.3)" Package Included: 1 x Fan 1 x Charging Cable