Color: Black + silver - Material: ABS - 3.5" TFT LCD display: 320x240 - Outdoor unit with 0.3MP CMOS camera - 6-LED night vision - 2.4GHZ transmission frequency - Effective range: 300m (open area) - Indoor unit built-in 1320 mAh lithium battery - Built-in 16 selectable chord melodies - Date and time display function - Can initiate and automatic photographing (max store 100 photos) - One indoor unit can control 4 outdoor units at most - One outdoor unit can call 4 indoor units at most - Package includes: - 1 x 100-240V charging head for indoor unit (2-round-pin) - 1 x 100-240V power adapter for outdoor unit (2-round-pin/147cm) - 1 x USB cable (80cm) - 4 x Installation screws - 4 x Plastic plug - 1 x English manual