A5 Notebook PM2.5 PM10 Air quality monitor it’s easy to wear and

it’s easy to wear and adjust the length according to the size of your pet to make them more comfortable

You can intuitively understand the air quality you breathe

Input Voltage: DC 5V

Follow the manufacturer’s instructions

Charging Port Compatibility: Putting your Power Bank into backpack and connect internal USB cable

A5 Notebook PM2.5 PM10 Air quality monitor it’s easy to wear andWe make it for you, to make it your own. Explore our extensive collection of refillable Notebooks, luxurious leather bound Organizers. Each style is highly versatile and available in a variety of covers and sizes that coordinate perfectly with our innovative Accessories. Personalize your desk with our quality stationery and enter a space within your control, ready to evolve into your own unique creation. Multiple Functions A5 Notebook 1) 3 card slots