2UUL DA90 BB Nano 30W Superpower Fan Precise Cooling and Dust Removing Tool and BB90 Electric Dust Removal Blower for electronics/mobile phone camera lens dust removal, keyboard cleaning, soldering maintenance, dust/slag removal, and cooling, etc. CC90 C1 Dust Collector for cleaning phone camera lens, motherboards, charging ports, earphones, smart watches, etc.

2UUL DA90 Superpower Fan Features:
1. BB Nano 30W superpower fan for precise cooling and dust removing.
2. Long battery life, battery capacity 1300mAh.
3. Integrated turbine motor, precise alignment, powerful and large air volume, compact and portable.

BB90 Blower Fan Features:
1. Comfortable grip ergonomics for easy grip and use.
2. Wide range of applications multi-scene cleaning companion.
3. Small and light suitable for various indoor and outdoor scenes.
4. High-efficiency professional cleaning with two nozzle, round nozzle concentrated point blowing, powerful deep cleaning, flat nozzle, flat sweeping face blowing, large area efficient cleaning.
4. Type-C charging. 

CC90 C1 Dust Collector Features:
1. Powerful suction, effectively removes dust from hard-to-reach areas.
2. Simple and quick operation with just a press of a button.
3. Long Battery Life, and provides extended usage for multiple cleaning sessions.
4. Ideal for detailed dust removal in small, sensitive components like headphone ports and watch lenses. Can quick and efficient removal of dust from mobile phone motherboards, watch lenses, headphone charging ports, and other sensitive areas.
5.  With a one-click start and long-lasting battery life, it offers convenience and thorough cleaning for detailed maintenance tasks.
6. Lightweight and compact, perfect for on-the-go maintenance tasks. 

2UUL DA90 Button Function Description:
1. Start UP: In the off state, press the switch key, twice continuously to turn on the low speed.
2. Shift: When it is on, press the switch button briefly, and the fan speed will cycle from low speed to high speed.
3. Shift: When it is on, press and hold the switch button to turn off the continuous cleaning function.