- Wireless connection, ultra low consumption, remote active wake-up, qucik start
- Use: Guests can visit the video, voice calls, and short-term video, the director does not need open the door, then will know the information of the comer
- Wake-up mode: Doorbell button wake-up, PIR body detection wake-up, mobile phone active wake-up
- Alarm push: Fast push in 3-5seconds
- Low power: Low power Haisi LiteOS scheme
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