4.3-inch wireless video intercom doorbell. Dual two-way intercom. External antenna design with long distance and anti-interference. Press the doorbell button to view real-time video on the screen One-click answer on the indoor unit, voice intercom with visitors at the door Support infrared night vision, visitors at the door can be clearly seen during the day and night Support one-click photo/video recording, the situation at the door is under control Indoor unit 4 ringtones switch, the sound volume can be adjusted Support shortcut keys to operate volume/brightness, say goodbye to cumbersome settings. External industrial-grade antenna, open transmission distance 300M, indoor (through 1 wall) transmission distance 50M Support TF card function, maximum support 256G (not included in delivery). Energy-saving design, the door machine can be used for about 6 months after a single charge Indoor unit: 4.3-inch color display Photo/video recording/video intercom/ Visitor message viewing ABS+PC flame retardant material, giving you protection Silicone button, better feel/longer life Type-C Power interface Supports 13 languages Outdoor machine: professional security camera, resolution 1080*720 80 viewing angle 4 850 infrared night vision lights, 1 meter infrared night vision 1000mah polymer battery Type-C interface Extremely long standby time of 6 months 2 installation methods: 3 meters adhesive mounting and screw mounting 1 two-way and two-way entry Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Voltage: AC220V Colour: White Material: ABS+PC Anti -Reserve Materials Package Contents: 1 x Indoor unit 1 x Outdoor unit 1 x Data cable (Accessory styles and colors are random depending on the batch, Not accepting designation) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.