This may look like a microphone, but it’s really a speaker for your MP3 player. The Microphone Speaker from Molla Space is 1.5″ x 1.5″ x 3″ long. Remove the handle to expose the 3.5mm audio plug that works with any audio device with a 3.5mm audio jack. It has a built-in, USB-chargeable lithium-ion battery, so it doesn’t drain your MP3 player’s battery. You’ll get about 4 hours of music from a charge. The Microphone Speaker is available in silver- or goldtone for $24.00 from Molla Space.