ITEM NAME:Security Alarm Intercom Doorbell Smart Door Alarm System Long Range Remote OZ Feature: 1. Up to several tens of meters to meet the needs of various residential and high-rise buildings. 2. Use an electronic step-down system with insurance to eliminate the dangerous transformer to ensure safety. 3. European style, exquisite and streamlined streamlined design, ultra-small body 4. Built-in stereo speaker, suitable for home, office, factory, travel and other places 5. Strong anti-interference ability, low repetition rate Specification: Power supply Transmitter: 23A 12V, battery available for one year (calculated by 20 times / 1 day),not including Receiver: 2*1.5V AAA Battery, not included Transmitter: 7.8*4.3*1.7cm Receiver: 10*5*3cm Package Including: 1X Receiver 1X Transmitter.Receiver: 2 1.5V AAA Battery, not included. Strong anti-interference ability, low repetition rate. Transmitter: 7.8 4.3 1.7cm. 1X Transmitter.
