Unizone UZ-9088 Portable Rechargeable Voice Amplifier Public Address (PA) Microphone & Speaker - Black Max 20W Loud, Clear and Natural Sound Unique Voice Tone Control and Aux Audio Input Connectivity NEODYM Unit for Wider Sound Coverage Compact (4.2x3.5x1.3 inch) and Light-weight (0.46 lb) Up to 8 Hours of Usage per Charge