The DS-KIS204 is a 4-Wire Analog Video Intercom Bundle featuring a compact design with dimensions of 128x42x24.8 mm. It offers a resolution of 720 x 576 pixels and is made from durable aluminum alloy. The device operates on a 12 V DC power supply and includes a 7-inch TFT LCD screen. It functions within a temperature range of -10° C to +55° C (14° F to 131° F) and supports a working humidity of 10% to 90%. The intercom bundle includes a built-in omnidirectional microphone and loudspeaker, with power consumption of up to 3W for the door station and ≤5W for the indoor station. It features noise suppression and echo cancellation, a physical button operation method, and captured picture storage. The product comes with a 12-month warranty and uses a 1/4 inch (6.35 mm) CMOS image sensor. The video frame rate is PAL: 25 fps.