1) Palm size monitor for mobility2) 4 AAA rechargeable Ni-MH battery or 6V DC adapter3) High quality color CMOS sensor for crisp, clear images4) Built-in microphone for audio monitoring5) Have 6 infra-red LED on the camera for night vision (day and night uses)6) 3-channel operation allows multiple (1-3) camera systems7) Long operation range: up to 100m clear line-of-sight or 30m through obstructions(walls/ceilings)8) Camera with AC or battery operated for portability9) Antenna hidden in the camera10) Ideal for baby/children room monitoring