... check 5. OEM accept Digital door viewers video door bell with vision panel/wide angle door viewer IntroductionThis product is convenient to ... parameters 1Power source Adapter, battery of mobile phone: BP-6M (1100Ma)2Camera 300,000 ... to 32G supportable) 6Shooting modeManual and automatic video-recording 7Current in “hold” mode Less than ... : O, C, Q, G. O---stand for earth, means opening to the worldC--- ...