The parent handheld unit has a battery inside. It works on both battery and power charger.
There is no battery built into the baby monitoring camera itself hence the camera always needs to be plugged into the power outlet for it to work.
Features
-Hassle-Free Portable Monitoring
-Two way(talk back)
-Temperature monitoring
-Built-in lullabies in the camera
-Automatic night vision
-Secure, interference-free, long-range digital signal
-High contrast 3.2-inch color LCD monitor
-Long battery life (Up to 20 hours in VOX mode)
-Built-in 8 lullabies may help the parent comfort the baby fall asleep
-Know your baby's room temperature all day long without worries
-Two-way audio between the camera and monitor, you can talk back to baby
-Keep an eye on baby all night long with automatic night vision
-No need to charge the battery for the monitor the whole night in Vox mode< br//>
-Multiple languages support
General
Transmission Frequency: ISM 2400~2483.5 MHz
Transmission Power: 17dBm
Unobstructed Effective Range: 160ft/50m indoor/850ft/260m outdoor, line of sight
Spread Spectrum: AFH & TDMA
Modulation Mode: GFSK
Operating Temperature: 14 ~ 122 Fahrenheit/- 10 ~ +50 Celsius
Operating Humidity: <85%
Monitor
LCD Size: 3.2
Resolution Supported: 320 x 240
Receiving Sensitivity: -90dBm
Consumption Current (Max.): 200mA
Battery: Li-polymer / 750mAh,3.7V
Power Supply: 5V/500mA DC
Dimensions (W x H x D): 70mm x 120mm x 17mm
Weight: 0.08kg
Camera
Image Sensor: CMOS
Total Picture Pixels: 640 x 480 pxl
Minimum Illumination: 0 Lux (IR on)
Night Vision Distance: 15 FT (5m)
View Angle: Diagonal 45
Power Consumption (Max.): 200 mA
Power Supply: 5V/500mA DC
Dimensions (W x H x D): 67mm x 106mm x 67mm
Weight: 0.4 kg
What's in the box
1 x 3.2" LCD Receiver
1 x Camera
2 x Power adapters
1 x handmade keyring