operating voltage: DC12V~24V
	Power consumption: maximum 10W (standby) / 18W (working)
	audio distortion: less than 8%
	audio signal to noise ratio: greater than 50dB
	camera: 2 million pixels
	display: 18.5 inch TFT,1440*900
	operation mode: touch mechanical key double operation
	 the way to open the door:
Two dimensional code, cipher, ID/ IC card, ID card, face recognition, cloud dialogue, voice intercom, out button
	opening distance: credit card or two-dimensional code <5CM, face recognition <1.5M
	network support: networking, offline work can work
	external interface: closed door detection, anti disassembly detection, network access
	working environment: -20 degree ~55 degree
	Equipment size: 457 * 354 * 32
	Installation method: wall mounted, embedded 86 boxes
	Function Description: 
	
		
			18.5-inch display screen, capacitive touch button operation, including two-dimensional code scanning module, face recognition module, cloud intercom, mobile phone baseband network intercom, video advertising announcement push play, image capture, closed door detection, expandable ID / IC / ID card recognition module, person card comparison