And achieve two-way intercom. The batteries in the door unit and the indoor unit are interchangeable.
eBay
Two-way hands-free door intercom and doorbell kit with ultra-slim design. Supports Smart Tuya APP wireless WiFi and hands-free communication (Note: the monitor supports wireless connection, but the doorbell and monitor require wired connection).
eBay
It can connect with all 12V electronic locks to realize one key unlocking. ABOUT WIRING: The monitor to doorbell needs wired with 4 wires. You can extend the distance with 4-core wire. And all monitors support call forwarding or intercom (audio only) between room monitors.
eBay
Smart Wireless WiFi Ring Doorbell Security Intercom Video Camera Door Bell Chime.
eBay
If not, be sure to release TALK when you are not speaking into the intercom. Also be sure to press TALK or CALL when the intercom is in MONITOR mode. You can take it anywhere since this intercom can be used with power bank.
eBay
Peso netto del display: 159 g. Peso netto del campanello: 120 g. Tempo di standby: più di 1 anno.
eBay
You can view it on your cell phone or monitor. You can connect all 12V electronic locks. ABOUT WIRING:The monitor to doorbell need wired with 4 wires.
eBay
Dies kann die Sicherheit in Ihrem Haus verbessern. - Monitor kann mit einem anderen Monitor kommunizieren. Die Innen-Monitor und Türklingel sind kabelgebundene Verbindung, die kabelgebundene Verbindung bietet eine stabilere Leistung und Video, und kann den Abstand zwischen der Türklingel und dem Monitor zu erweitern.
eBay