Feature: 1. *2.4in TFT screen indoor monitor with one outdoor peephole camera, elegant and practical design. 2. *320*240 photo shooting, clearer pictures displaying. Night Vision function, clear viewing even in the darkness. 3. *Doorbell function, never miss an important visitor. Built-in memory, loop recording. 4. *Support two power modes optional: battery or USB cable(Both included), very convenient. 5. *Super low power consumption. With standby mode, more power saving. Specification: Overview: This item is 2.4in TFT Smart Door Viewer, it includes one indoor viewer and one outdoor peephole camera with doorbell function and night vision function. It has the functions of monitoring and photo taking. It's super cost-effective design for you. Features: *2.4in TFT screen indoor monitor with one outdoor peephole camera, elegant and practical design. *320*240 photo shooting, clearer pictures displaying. Night Vision function, clear viewing even in the darkness. *Doorbell function, never miss an important visitor. Built-in memory, loop recording. *Support two power modes optional: battery or USB cable(Both included), very convenient. *Super low power consumption. With standby mode, more power saving. Specifications: Screen Size: 2.4 inches View Angle: 90° Resolution: 320*240 Storage Way: Built-in memory, loop recording Material: ABS Door Hole Size: 14~28mm Door Thickness Size: 35~120mm Indoor Host Power Supply: 1*600mAh lithium battery(included) Color: Black Indoor Host Size: Approx. 8.2*8.2*2cm Outdoor Peephole Camera Size: Approx. 62mm*55mm Package Information: Package Size: Approach. 12.3*10.7*7.4cm / 4.8*4.2*2.9in Package Weight: Approach. 209g/7.4oz Package List: 1* Indoor Host 1* Peephole Camera 1* Bag Board and Mounting Screws 1* USB Cable 1* User Manual(English) Package List: 1* Indoor Host 1* Peephole Camera 1* Bag Board and Mounting Screws 1* USB Cable 1* User Manual(English)