A compact includes a lower portion, an upper portion, a first mirror, a battery, a circuit, and a coil. The upper portion is movably coupled to the lower portion by a hinge such that the upper portion rotates about the hinge to transition from a closed state to an open state. The first mirror is disposed in the lower portion such that the first mirror is visible when the upper portion is in the open state. The battery is disposed within the lower portion. The circuit is electrically coupled to the battery. The coil is disposed within the upper portion and electrically coupled to the circuit such that the coil produces an oscillating magnetic field when electric power is provided to the coil by the battery and through the circuit.