Unizone UZ-9088S Portable Rechargeable Voice Amplifier Public Address (PA) Microphone & Speaker - Black Portable, Compact, Light, Surprisingly Laud Perfect for public address need - Home, Office, Classroom, Outdoor, Group Meetings - Up to 8 Hours of Usage per Charge Great for Your Kid's Singing and Dancing - Mobile Karaoke - Connect Audio Line to Your iPhone/iPod Unique Voice Tone Control and Aux Audio Input Connectivity Compact (4.2x3.5x1.3 inch) and Light-weight (0.46 lb)