18650 battery powered, low-power consumption, ultra-long standbytime. Adopting 433MHz public channel, with long wireless distance and strong transmission(about 800-1000 meters in open space, indoor 1-6 floors) Wireless doorbell supports wireless unlocking and two-way voice intercom Wireless intercom doorbell no wiring no network required built-in wireless signal two-way intercom hands free supports wireless remote unlocking Wireless unlocking box design, Tap the key to unlock, easy to install and portable size., Weight: 1.10672055524 pounds, Manufacturer: Jaywool
18650 battery powered, low-power consumption, ultra-long standbytime. Adopting 433MHz public channel, with long wireless distance and strong transmission(about 800-1000 meters in open space, indoor 1-6 floors) Wireless doorbell supports wireless unlocking and two-way voice intercom Wireless intercom doorbell no wiring no network required built-in wireless signal two-way intercom hands free supports wireless remote unlocking Wireless unlocking box design, Tap the key to unlock, easy to install and portable size., Weight: 1.10672055524 pounds, Manufacturer: Jaywool
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