Working with 4 cameras max. quad display - Professional 2.4GHz digital wireless security camera - Four channel available monitoring at the same time - Network remote monitoring - 100% safe signal privacy guaranteed - Receiver resolution: 480 x 240 - Audio & Video recording image capturing - Image Sensor: 1/4" CMOS - Effective Pixels: 628 x 582 (PAL) / 510 x 492 (NTSC) - Horizontal Resolution: 380 Line - Transmission distance in the open place: 150-200m - Outdoor waterproof - 8-10 meters night vision range - Receive Frequency: 2.4-2.48GHz - Digital modulation mode: GFSK - Sensitivity: <=-85dBm - Consumption: <=1W - Package includes: - 4 * Cameras - 4 * Bracket for camera - 4 * Antenna - 4 * 100-240V power adapter - 1 * Mounting hardware (bag) - 1 * Software CD - 1 * English user manual CD: http://m5.img.dxcdn.com/CDDriver/CD/sku.58181.rar