1、Can be set to mute mode, the guest will only display the screen when the doorbell is pressed, and the default ringtone will be restored after the power is off. 25 polyphonic music can be adjusted. 2、One‑key monitoring button to easily view the situation outside the door， and one‑key unlocking button, lightly pressing to unlock, safe and convenient for you to use. 3、7in true color TFT‑LCD display, 700TVL 90° wide‑angle HD camera, look wider and farther, 800 x 480 resolution, bright colors, high restoration, sensitive touch button, sensitive response, soft blue color backlight. 4、Equipped with five infrared night vision lights, automatically senses the bright environment, infrared night is regarded as a black and white image, normal use in no bright environment, clear and stable 5、With video intercom, when someone rings the doorbell, the room will display the doorway screen, and the visitors can be clear at a glance. Hands‑free call two‑way intercom, clear sound quality. 6、With high‑fidelity and ultra‑clear sound characteristics, high‑quality sound transmission system, clear microphone and speaker effects, keep away from noise, make ears more comfortable, make communication easier. 7、The outdoor unit is waterproof and dustproof, with zinc alloy shell and rain cover, elegant in shape and practical function. The outdoor unit supports unlocking by card, and the ID card supports up to 500. 2 x Indoor Unit1 x Outdoor Unit1 x Power2 x Hanging Board4 x Screw Pack2 x Network Cable1 x 2 Core Cable1 x Instruction1 x Add Card1 x Delete Card2 x User Card Item Type: Wired DoorbellMaterial: ABS Plastic + Zinc AlloyThe Indoor Unit:Display: TFT-LCD 7inResolution: 800 x 480Output: DC15V / 1.2APower Consumption: Standby ≤ 1W, Working ≤ 10WRingtones: 25 Polyphonic MusicThe Outdoor Unit:Function Introduction: Visual Intercom, Remote Unlocking, Night Vision, Surveillance, RainproofCamera: 700-Line CMOS Color Digital High-Definition CameraPower Consumption: Standby ≤ 1W, Working ≤ 2WInput Voltage: 100-240VNight Vision: 5 LED Infrared Night Vision LightsThe Best Distance for Night Vision: Approx. 0.2- 1.2m / 7.9 x 47.2inCard Capacity: 500Card Type: 125KHZ ID CardCamera Angle: 90°Working Temperature: -20-60℃How to Use: 1. Connect the Outdoor Unit to the Power Supply 2. Connect the Outdoor Unit and the Indoor Unit Through Two Network Cables and Terminal Lines 3. You Can Watch Outside the Door on the Indoor Unit