Shure BLX14 SM31 Wireless Headset System.

This is the system for you if you're looking to project your voice, while remaining hands free. It's perfect for public speakers, fitness instructors and vocalists. The Microphone The SM31 is a powerful microphone that was originally designed specifically for use in fitness studios. Because of that, this microphone features a crystal clear condenser cartridge that remains moisture repellent and hard wearing. The beauty of this microphone can be found in its ease of use and quick setup. No longer do you need to spend ages connecting up a mic. All you'll need is this headset. Simply connect it up the BLX1 receiver and you're ready to go! All Day Recording Some people worry that you'll run out of battery with a wireless system and be caught out without a microphone. That's why Shure take battery life so seriously. With this pack, you can squeeze 14 hours of battery life out of just one set of AA batteries. You don't even have to worry about going out of range either; you'll have up to 100m of wireless connectivity to play with. Unless you plan on standing the full length of a football pitch away from your receiver, you'll be absolutely fine.