*Small palm size of receiver for mobile usage *2.5 LCD screen with 480 x 234 resolution *Rechargeable Li-battery for wireless receiver, enable at least 2 hours continuous working *4 channel available for multi-camera working *Built-in microphone for audio monitoring *Suitable for monitoring children and elders, and widely used for theft prevention, after-hours surveillance, home security, etc. Match with: 2.4G Wireless AV Color Camera