Shure's SLX-D wireless systems are versatile and expandable to fit the needs of any venue. Single-channel and dual-channel receivers and vocal, guitar, headset, and lavalier options let you choose the setup that's right for you. Once you get everything you need, getting set up is a breeze. One-touch synchronization and IR scan make pairing a transmitter and receiver a walk in the park. With a pair of AA batteries, Shure's SLX-D transmitters provide up to eight hours of non-stop operation that's perfectly suited for conferences, extended performances, and Sunday mornings.