Q5X Incognito QT-5100 -- Two-piece ultra-thin micro-sized transmitter in a water-resistant flexible polymer case with detacheable battery. Concealable in wigs, bras, costumes etc. Detachable battery RF output settings 10 - 100mw Choice of battery size, frequency block, and additional compatibility mode. (All Q5X QT-5100 transmitters come with 2 default Q5X modes.)