Baby Monitor VB602 IR Night Vision Temperature Monitor Lullabies Intercom VOX Mode Video Baby Camer

The parent unit has a battery inside . It works on battery or power charger .There is no battery built in the camera . So the camera always need to be plugged in the power outlet when it is working . Features1,Hassle-Free Portable Monitoring2,Two way(talk back)3,Temperature monitoring4,Built-in  lullabies in the camera5,Automatic night vision6,Secure, interference free, long range digital signal7,High contrast 3.2″ color LCD monitor8,Long battery life (18 hours in Vox mode)9,Multiple languages support(English/French/Spanish/Portuguese/Italian/German/Russian)10,Built-in lullabies may help the parent comfort the baby fall into asleep.11,Know your baby's room temperature all the day long without worries!12,Two way audio between the camera and  monitor, you can talk back to baby.13,Keep an eye on baby all  night long with automatic night vision14,No need to charge the battery for the monitor In the whole night in Vox mode SpecificationGENERAL:1,Transmission Frequency: ISM 2400~2483.5 MHz2,Transmission Power: 17dBm3,Unobstructed Effective Range: 160ft/50m indoor/850ft/260m outdoor, line of sight4,Spread Spectrum: AFH & TDMA5,Modulation Mode: GFSK6,Operating Temperature:  14 ~ 122° Fahrenheit/- 10 ~ +50° Celsius7,Operating Humidity: