Shure blx4r Microphone – Cordless

FEATURES
BLX2/SM58 Handheld Transmitter Features:

Up to 14 hours of continuous use (with 2 AA batteries)
Up to 300′ transmission radius (line of sight)
Quick and easy frequency matching (Group and Channel selection buttons)
2-colour transmitter status indicator LED
Integrated SM58 microphone capsule
10dB of gain attenuation
Lightweight, rugged construction
Colour ID caps (available separately)
BLX4 Receiver Features
1-touch QuickScan frequency selection quickly locates the best open frequency
Up to 12 compatible systems per frequency band (region-dependent)
2-color audio status indicator LED
XLR and 1/4″ output connectors