Here we have 1(one) Wireless mini cam specs are as follows: 

2.4GHz wireless technology
328 Ft. of transmission line of sight 
4 Channel receiver works with 2 cameras 
Stand-up receiver for better signal reception 
Camera transmission frequency manually adjustable 
Micro-size camera for discreet observation and portability, perfect for covert surveillance 
380 TV lines resolution, CMOS imaging sensor 
6mm fixed lens, 3.0 Lux, F1.2 
clear color video images 
Built-in microphone for audio monitoring Product Specification
Transmission Frequency  
ISM 2.4GHz~2.483GHz 4CH 
Modulation Mode FM
Non-obstructed Effective Range 
328FT
Operating Temperature -10oC~ +50oC (+14oF~ +122oF)
Storage Temperature 
-20oC~ +60oC (-4oF~ +140oF)
Operating Humidity 
85%RH 
 
CAMERA
TV System NTSC
Effective Pixels 
510(H) x 492(V) 
Image Device 
1/3" OmnVision CMOS 
Horizontal Definition 
380TV Line
Angular Field of View 
45° (f=6mm)
Minimum Illumination 3.0 Lux, F1.2
Scanning Frequency 
15.734KHz (H) / 60Hz (V)
Power Supply DC 8V, 500mA
Dimension 35x25x53mm
Weight 45g (1.6 oz) 
 
RECEIVER
Receiving Frequency 1 Channel: 2.414GHz, 2 Channel: 2.468GHz 
Receiving Sensitivity ≤-85dBm
Antenna 50Ω SMA 
Intermediate Frequency 480MHz
Frequency Stabilization ± 100MHz
Video Output 1Vp-p @ 75Ω, S/N > 38dB
Audio Output 10KΩ / 200mVp-p
Power Supply  
DC 12V, 500mA
Power Consumption <2W
Dimension 91x45120mm
Weight 
120g (4.2 oz) 
 
PACKAGING
2.4GHz Transmitter/ Camera 2 pcs. 
Receiver 
1 pc.
DC 12V/500mA Receiver Power Adapter 1 pcs. 
DC 8V/500mA Camera Power Adapter 
2 pc.
Audio/Video Cable 
1 pc.
User Manual  
1 pc.