1>baby care product 2>1 year warranty 3>wholesale price,fast delivery 4>direct to factory,support OEM 5>CE,FCC,RoHS ... audio monitoring* 3-channel operation allows multiple (1-3) camera system* Long operation range: up to 100M clear line-of-sight ... Night Vision*Night vision range:3m* Certificate:CE,FCC,RoHS 2.4 GHz baby care product