It"s always good to get heard - and now you can bring those rock n" roll classics to life with this retro Rockabilly Microphone Speaker! Just plug in your phone or mp3 player and you"ll be tapping your feet to the beat in no time. This mini speaker packs a punch with a 2000 milliwatt output power speaker and features a 250mAh lithium ion battery. Speaker can be recharged from any computer via the provided USB cable.