This application relates to a wireless power transmission system. In one aspect, the wireless power transmission system includes a power transmitting module that provides wireless power to a power receiving module. The power receiving module can include transparent heat generating elements that are heated by power wirelessly received from the power transmitting module. The power receiving module can include a first coil pattern. The power transmitting module can include a battery and a second coil pattern that can wirelessly transmit power supplied from the battery to the first coil pattern of the power receiving module. The wireless power transmission system can be included in a head mount device such as a fire mask, a gas mask, or a helmet.