As one of its daily deals, B&H Photo Video offers the Shure Cardioid Dynamic Instrument Microphone, model no. PG57-LC, for $29.99 with free shipping. That's the lowest total price we could find by $24. Designed for use with amplifiers and brass instruments, it features a cardioid polar pattern, internal shock-mount, neodymium magnet, and includes a mic clip and storage bag. Deal ends today.