https://www.asmag.com/project/hikvision_non-visible_light_technology_survey/

Product Info

Hands-Free Color Video Door Phone

Shenzhen Yiant Security Equipment Co., Ltd.

Region: China

Update: 11/04/2011

Key Specifications

Features:
*Full duplex audio communication mode
*Transmission distance: 300m in open air
*16-digit phonetics sampling precision
*8K sampling rate, DAC audio output 16-digit
*Ov7725 camera and 2.4” TFT LCD screen
*Adopts AFH adaptive frequency hopping
*2.4G channel with wireless LAN and bluetooth devices

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