The camera (baby unit) can also be powered by a powerbank using a cable with a miniUSB connector (not included). In VOX mode, the camera's power draw is very low, so some powerbanks may automatically evaluate the device as charged and turn off, interrupting transmission. The TrueLife NannyCam video baby monitor is primarily designed for home use and to be plugged into the mains.
RECOMMENDATION: If you are using a powerbank, do not use VOX mode. The camera will have a higher (measurable) power draw and everything should function normally.
TrueLife is not responsible for power quality and possible power outages when using a powerbank.