Portable Electric Air Duster Handheld Compressed Air Duster Computer Cleaner Mini This portable powerful dust blower, equipped with a brushless DC high-speed motor, has a wind speed of up to 20 meters per second. It can be used continuously for 1 hour after being fully charged. With a compact design and a weight of only 300 grams, it is convenient for carrying and storage. Whether it's for barbecuing, air cushioning, or sports cooling, it's an indispensable helper in your life. Features: Brushless DC high-speed motor, with a wind speed of up to 20 meters per second, powerful dust blowing. Can be used continuously for 1 hour after being fully charged, super long standby. Weighs only 300 grams, compact design, convenient for carrying and storage. Stepless frequency conversion, slide to adjust the gear, simple operation. Aluminum alloy body, durable and . Specifications: Motor type: High-speed brushless motor Material: Aluminum alloy body + Abs button base + Silicone button Working voltage range: 6.0V-8.4V Battery capacity: 7.4V 2000mAh (lithium battery-2000mAh*2) Charging time: ≥3H (5V1.8A±10%) Endurance: Low-speed endurance time: 180 minutes ±5/High-speed endurance time 27 minutes ±3 Maximum power: 40W Speed: Minimum gear 40000 rpm ±10%/Maximum gear 75000 rpm ±10% Maximum wind pressure: Minimum gear 8g ±2g/Maximum gear 50 ±3g Charging interface: Type-C (USB2.0) Switch key/gear: Stepless speed regulation (long press to start, slide to adjust the gear) Wind speed: Minimum gear 8m/s Maximum gear 20m/s Working temperature: -10˚C to +60˚C Storage temperature: -20˚C to +75˚C Dimensions: 8*3.6*12.6cm/3.2*1.4*5in Weight: 265g/0.58lb (including battery) Package list: 1* Portable powerful dust blower 1* Charging cable 1* User manual