Sennheiser XSW 1-825 DUAL-A Dual Vocal Set, E 825 Dynamic Capsule, 548-572MHz. 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.