Roland ELCajon EC-10M Mic Processor w/ Clip On Mic & Power AdapterThe Roland EC 10M ELCajon Mic Processor mixes your playing along with a variety of 16 onboard sounds including tambourine, shaker, djeme, electronic drums, and more. The secret to the magic is the included clip on condenser microphone that sends the signal to the processor. The EC 10M features a built in looper, compressor, threshold, and volume controls. The AC adapter is included, but you can also use 4 x AAA batteries for about 5 hours of wireless