Audio transmitter for guided tours with 20 channels. An LCD screen shall show the battery level, the corresponding channel and a microphone indication (mute or unmute). It shall come with a microphone input and an additional aux input to operate with auxiliary devices or MP3 and voice simultaneously. Three large buttons shall change the channel, mute the microphone or turn off the device. It shall be able to be synchronized with a synchronization kit. The audio transmitter can be attached to anything with a belt clip or lanyard. The tour guide system shall be usable without a lavalier microphone due to an integrated microphone. The rechargeable battery can be charged directly over the device via micro USB cable or in the optional battery charger bag.

The transmitter shall be the TOA model WG-D100T, the receiver shall be the TOA model WG-D100R, the synchronization kit shall be the TOA model WG-D100SK-EB and the charger shall be the TOA model WG-TC12A.