a man attaches a battery pack to something
a man attaches a remote plane to a battery
a man builds something with a battery
a man creating an airplane shooter
a man explaining about the fixing of battery
a man is adding an attachment to what looks like a toy of some kind
a man is attaching a battery to an airplane shooter
a man is showing how to use a contraption he made
a person is assembling an electronic device
a person is building something
a person places a toy on a table
an airplane is latched to a battery
attaching a bigger battery to electronics
some one is showing some experiment and talking about that
someone is showing some tools
the man is giving an explanation on technology
there was a resistor in the back
a man is adding an attachment to what looks like a toy of some kind
a man is attaching a battery to an airplane shooter
a person is assembling an electronic device