The SENNHEISER's XSW1 825 dual wireless microphone system includes 2-channel analogue UHF wireless receiver with internal antennas. When combined with an XS wireless 1 series handheld transmitter and microphone capsule, it can be utilised by singers and presenters (sold separately). The dual-channel receiver is perfectly suited for DJ, church, and school applications and is designed with ease of use in mind. Each receiver channel is equipped with antenna-switching diversity reception, automatic frequency management, and remote channel synchronisation. There are up to ten suitable channels available. A power adaptor for use with an AC outlet is also supplied.