Sennheiser XSW IEM SR-C Single Half-rack Transmitter, Antenna, NT 12-5 CW Power Supply, 662-686MHz. Part of our AV Components range (microphones & conferencing), supplied through AV Distribution, an authorised South African distributor for professional audio, video and staging equipment. Available to order -- contact us for lead time. Contact our team if you need help confirming compatibility with your existing setup.