Shure SLX 2 / Beta 58A / S6 - handheld transmitter for SLX series with Beta 58A dynamic capsule (supercardioid polar pattern). Display (group, channel and battery), frequency transmission from the receiver via infra-red, 960 switchable frequencies, menu lock, on/off switch, powered via 2x 1.5V batteries, S6 frequency range (838.000-865.000MHz), up to 20 parallel systems on multiple frequency bands depending on local regulations.