Shure Wireless Vocal System with SM58 Handheld Microphone - BLX24SM58H8 BCR14 Qualities:

BCR14 Qualities:

it provides an accessible learning tool for students while maintaining professional sound quality

the Digital-Quad-H is unaffected by the normal causes of signal interference and drop outs

6mm triple-flanged hoops

Or want to do a voice presentation to a group of people in a place with loud background noise

Shure Wireless Vocal System with SM58 Handheld Microphone - BLX24SM58H8 BCR14 Qualities:Overview Features: Power and battery status LED Adjustable gain control Quick & easy frequency matching 2 AA batteries (included) provide up to 14 hours of continuous use 300 feet (91 m) operating range (line of sight) Weight: 5 lbs