Main Features:
4channelsavoidinterference                                                                              

Build-in speaker                                                   
Build-inLi-Batteryfor5hoursworking                                                                                                                                             LCD model have size: 1.5", 1.8",2.5",7"
Wireless camera
Image device: 1/3" color CMOS
TV system: PAL/CCIR NTSC/EIA
Resolution: 380 TV lines                                                     
Supports 4 channels video input on one computer                                     
Built-in microphone for audio monitoring                                 
Built-in IR lights for 3m night vision range
Scan frequency: PAL/CCIR, 50Hz; NTSC/EIA: 60Hz
Minimum illumination: 1 Lux/F1.2
Voltage: 8V                                                                   
Output power: 10mW
Frequency range: 2.4GHz