This item is very useful, and it can repel pesky mosquitoes for indoor or outdoor use.
It's powered by USB interface, which makes it easy and convenient to carry.

Features:
Compact and lightweight, easy to carry for indoor and outdoor use.
USB powered, plug and play, can be powered by any USB outputs.
Adopts the heating element of the PTCR with constant temperature for stable performance.
Includes 2pcs standard environmental friendly, Odourless mosquito refill mats
(one mat is able to use for 10-12 hours) for matching use.
Best suitable for outdoor using, like fishing, driving, camping, hiking, etc.



Mini USB Mosquito Specifications:
Color: White,Green,Pink
Material: Fire resistance 
Operating temperature: 165degC+/-8degC
Input: USB DC 5V 1.5A
Dimension: 8.1 * 5.9* 2.35cm
Weight: 31g
Package Size: 12.5 * 8.3 * 3cm
Package Weight: 44g / 1.55oz

Refill Mat Specifications:
Color: Blue
Weight: 30mg
Effective coverage: 15m2
Smokeless, Odourless and Eco friendly