1. The height of QQ-2L is 9cm , it is very good at clean the dirty place bellow SOFA and bed .
2. Remote control , very small adjust to change QQ-2L’s walking direction .
3. Self- charging function ,it can find the station when the battery is very not enough and self charge automatically
4. LCD display , you can check the work going of the machine
5. The noisy is only 76dB , it won’t take you the “HEARING”pollute .
6. UV light can kill the bacturiem up to 90% on your floor .
7. Five kinds walking lines , QQ2-L can ensure anywhere you allowed in your home .
8. As it can send out the good smell as it is working if you put the essential oil in machine
9. Can be check the stair and any obstacle
10.RoHs, GS, CE , UL certificate
OEM service is ok .