Powerful Duster & Deep Cleaning The icanzuo air duster is the ultimate smart device! With 2 nozzles 1 brush nozzle for more precise cleaning and 1 round nozzle for blowing dust it can be used for most devices. It's perfect for cleaning the smallest dust particles in high-precision instruments. This duster helps you clean air conditioners, pet hair, printed circuit boards, medical devices, relays, contacts, computers, laptops, keyboards, switches, solenoids, electrical equipment, laboratory instruments, telecommunications equipment, and electronic instruments, and so on. Instructions for Use: 1. Long press for 3 seconds to start. 2. Connect the large diameter nozzle to the product. Why Choose Our Product? This is a portable icanzuo air duster you can keep in your home or car. It contains no chemicals and produces no pollution. It's widely applicable in every narrow space and corner. It can safely blow away dust on electronic components without creating static electricity, giving you a better experience. Deep Cleaning The cordless air duster provides a maximum rotational speed of up to 40000 RPM. Its motor produces a powerful airflow at nearly 10 levels a strong gale of 28m/s for deep cleaning. Large Capacity Battery The Air Duster has built-in 8000mAh/4000mAh/2 lithium batteries. It can work for almost 0.32 hours on low setting after a full charge. USB port fully charges in 5.5 hours. Portable and Powerful This device comes with a USB charging cable. It can be charged with multiple USB-powered devices such as laptops, power banks, power adapters, car chargers, etc. Comes with an extra brush tube for deep cleaning of precision instruments.