DESC: Easy to setup and usePerfect for monitoring around your home or business. Wireless video direct to your TV or recorder. High quality picture and sound transmitting and receiving No interference from crowded 2.4GHz devices.Stronger wall penetration than 2.4GHz/5.8GHz wireless transmission. Video transmission goes up to 330ft clear line of sight or 100ft indoor Battery operable camera for temporary usage (2-3hrs). Flexible channel switch camera des ign Two-channel receiver supports up to two wireless cameras