Abstract: A hot-shoe adapter system is provided for fastening accessory parts to a hot shoe. The hot-shoe adapter system has a hot-shoe adapter with a first side for fastening in a hot shoe and a second side, and an adapter plate, which has a plurality of first holes for fastening the hot-shoe adapter, a plurality of second holes for fastening the second side of the hot-shoe adapter, four corners each with a third hole and at least one magnetic element in the region of the third holes.

Abstract: A mobile wireless audio transmission system is provided, comprising at least one mobile wireless transmitter for the wireless transmission of audio signals which have been recorded via a microphone in the transmitter or which have been transmitted via an audio input to the transmitter. The transmitter comprises a transmitter rechargeable battery unit. The system further comprises a mobile wireless receiver for the wireless reception of audio signals transmitted wirelessly by the at least one transmitter, wherein the receiver comprises a receiver rechargeable battery unit. The system further comprises a mobile charging/transport dock which comprises at least one transmitter receiving compartment for receiving a transmitter and a receiver receiving compartment for receiving a receiver and a rechargeable battery unit as power supply.