The SHURE's BLX1 features world-class design and rock-solid construction, as well as simple setup and operation. This wireless microphone is compact, lightweight design has group and channel selection buttons for rapid, painless frequency matching, as well as a 2-color LED for status monitoring. The BLX1 is ready for any gig, with a battery life of up to 14 hours on two AAs and a transmission range of up to 300 ft.