2.4GHz CCD Wireless Security Camera
1/3 inches Sony CCD, 480 TV lines sharp picture display
Built-in microphone for audio monitoring
Up to 100m (330ft.) transmission range in open space
Built-in rechargeable Lithium battery at least for 2hrs continuously working

Camera Specification:
Imaging Sensor:1/3-inch Sony CCD
CCD Total Pixels:   512(H)*582(V)PAL
                                512(H)*492(V)NTSC 
Horizontal Resolution: 480TV Lines 
Minimum Illumination: 1.0Lux / F1.2
Gain Control: Automatic
Frequency: ISM 2,400~2,483MHz 4CH*
S/N ratio: e48dB
Modulation Mode: FM
Bandwidth: 18MHz 
Power Supply: +5VDC 
Operating Temperature: -10 ~ +50 / +14 ~ +122
Storage Temperature: -40 ~ -85 / -40 ~ +185
Operating Humidity: 85%RH 
Unobstructed Effective Range: 100m(Min)