Samson's Expedition XP106w Rechargeable Battery Powered Wireless PA is packed with incredible features, including Bluetooth connectivity and a built-in 4-channel mixer. It also comes complete with a USB digital wireless system for delivering impromptu performances and professional presentations in any environment. Such versatility, combined with clean, crisp audio, makes the XP106w an all-in-one solution for classrooms, conferences, tour groups, parties, as well as a variety of outdoor applications. This package also includes a lavalier mic.