Apartment 2 Units Wired Video Door Audio Visual Intercom System SY813MC12 -240V Features: 7 inch digital color LCD screen, no radiation, low power consumption, true high definition 16:9 widescreen display. Ultra-thin design and acrylic panel make it beautiful and luxurious. Hands-free intercom and active surveillance outdoor functions. You can choose from 16 beautiful polyphonic ringtones. Image brightness, chrominance and volume can be adjusted at will. The outdoor unit uses metal material, which can be waterproof and explosion-proof. The night vision function can also record the situation outside at night.           Specifications: Condition: Color: Show as Picture Material: Metal+ABS Display Resolution: 840 * 480 System: PAL / NTSC System  Power Supply Mode: Switching Power Supply AC110-240V 50Hz / DC15V 2A Machine Current: Less Than 800mA Call Delay Time: 120S ± 10% Monitoring Delay Time: 60S ± 10% Camera Sensor: HD Color CMOS 700 Lines Indoor Unit Installation Method: Wall-mounted Outdoor Unit Installation: Wall-mounted Connecting Cable: 4-core Connecting Cable is Equipped With 5m + Two-core Terminal Cable 15cm (Connected to Electric Lock) Indoor Unit Size: Approx. 24 * 15 * 2cm/9.4 * 5.9 * 0.8 in Outdoor Unit Size: Approx. 18 * 9 * 2cm/7.1 * 3.5 * 0.8 in Package List: 2 * Indoor Units 1 * Outdoor Unit (Camera) 2 * Connecting Lines (Standard 5M) 2 * Switching Power Supply 1 * Instruction Manual