Wireless Voice Intercom Doorbell 2-way Talk Monitor with 1*Outdoor Unit Button 2* Indoor Unit Receiver Smart Home Security Door Bell

Specifications: Indoor unit input voltage: 5V 1A Outdoor unit power supply: 4*AAA battery (not included) Indoor unit power supply: Built-in lithium battery(included) Wireless frequency: 467.6375MHz Transmission distance: outdoor bell:200m indoor bell:5-50m (without any obstacle) Waterproof: NO waterproof function Outdoor unit working time: 4 months(Approach) Indoor unit working hours: 48 hours(Approach) Color: Silver/Gold（Optional） Material:Plastic+ABS Operating temperature: -20℃ to 55℃ Package Size: Approach.16.2*11.8*4.8cm/6.38*4.65*1.89in Package Weight: Approach.263.5g/9.29oz

Features: 1、2 receiver and 1 push button,talk between receiver and push button via wireless connection within a large range(outdoor bell:200m indoor bell:5-50m without any obstacle),stable transmission signal to make voice clear. 2、Receiver support rechargeable battery,transmitter supports 4*AAA battery last up to Approach 4 months(transmitter 4*AAA batteries are not included). 3、Easy to install and use,visitor presses the outside doorbell, after getting ring, you should press the button one time on receiver to get connected and then hold to speak,release it after finishing.

Package List: 2* Indoor Unit 1* Outdoor Unit 1* Screwdriver 3*Double-sided Adhesive 2*USB Charging Cable 1*User Manual(English)