Electricity: Battery/mains + safety

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

Does this thing use electricity from the mains, batteries or both?

• the mains

• batteries

• both the mains and batteries

__________ touch a switch with wet hands

• Do

• Don't