Model: RC-451D - Color: Black camera + black receiver - Watch over your home or small business direct from your TV or VCR - 4-Ch real time video color 2.4G ultra-mini wireless cameras - Interference free - 1/4 vision CMOS camera - Camera resolutions: Color CMOS 380 TV Lines - Receiving frequency: 2.4~2.48GHz - Modulation: FSK - Transmitter power" 17dBm - Unobstructed effective range: 100m transmission distance without block transmission - Built-in microphone - Support audio & video recording image capturing - PAL (628*582)/NTSC (510*492) AV system - Widely use in Home Office School Age Care Childcare applications for theft prevention after-hours surveillance home security - Camera power supply: Power adapter input: AC 100-240V US plug - Receiver power supply: Power adapter Input: AC 100-240V US plug - Package included: - 1 * Wireless camera - 1 * Wireless receiver - 1 * AV cable - 2 * Power adapter (for camera & receiver) - 1 * English user manual