MA500 is a light weight personal voice enhancer and can work with a variety of microphones for convenient speaking reinforcement. Very light-weight portable PA can be strapped to waist as a belt pack. It can be powered by 6 AA alkaline batteries or rechargeable batteries. Featuring high efficient 2.5" driver driven by 5-watt amplifier, it is specially designed for kindergarten teacher and mobile retail stands. MA500 is packaged with a D10A omnidirectional microphone with no proximity effect and tuned frequency response for good intelligibility.