Features:7 inches high definition digital LCD monitor,with take picture,visitor records and calendar function.The indoor monitor can support to connect 8 mobile phone APP user. Support for IOS/Android system mobile phone , then the mobile phone can view and unlock.Handsfree dual-way intercom and indoor monitoring - When a visitor ring the bell, the monitor will be activated and show the image outside.Press the answer button, then you can talk to outside, press the answer button again to turn it off.Indoor monitor can connect to wireless wifi router.IR Night Vision - With this function, you can see outside no matter day or night. Keep your home more safer.Mobile APP with monitor, take picture,video record by manually and unlock functions.Support 1000 user ID card unlock.Multiple ringtones - The 25 chord ringtones can be switched freely, elegantly and fair-sounding. Very suitable for 3-apartsment/ families, there are 2 call buttons on the outdoor camera, each call button can only connect and talk with one indoor monitor screen.The indoor monitor can connector to outdoor unit directly by 4-core wire. Specification:Socket Type: US Plug 100-240V, EU Plug 100-240V, UK Plug 100-240V,AU Plug 100-240V (Optional)Camera: Night Vision: Infrared LEDs, Up to 3 meters View Angle: 92 Definition: >1000TVL Power Consumption: Standby: 0.1 W; Unlock: 6 WInstallation: Embedded mounted Size: 245 * 118 * 38mm/9.6 * 4.6 * 1.5inMonitor:Display: 7inches TFT LCD (16:9)Resolution: 1024(H)*600(V)Unlock: Support mobile phone and tablet to unlock Additional Memory: Support additional TF card (64GB max.) Touch : Yes Wifi: Yes Power Supply: DC15V 1.2A Size: 204 * 140 * 18mm/8.0 * 5.5 * 0.7inMaterial: Aluminum Package Weight: Approx. 3038g/107.2oz Package list:1 * Outdoor Unit (6-button camera) 3 * Wifi Indoor Monitor 3 * DC15V Power Adapter 6 * 4-core Wire 3 * 2-core Wire 7 * 125KHz RFID Reader Card 1 * Manual 3 * Screws