Voice Amplifier 20 Watts, Portable, for Teachers, Coaches, Tour Guides, Presentations, Costumes, Etc.
Model: Dime-Tech DT911 Color: Black Power output: 20 Watts Frequency response: 100hz  13db1khz  1db Dimensions: 4.13in x 3.31in x 1.38in (105mm x 84mm x 35mm) Weight (w/ Batteries): 0.92 lbs (420 g) Voltage : 7.5v Current consumption: 150mA Speaker Sensitivity: 53 dBV/A +- 3 dB Power Source: Built-in Lithium Rechargeable batteries Battery Life: 10-15 hours, 6 hour recharge, 2-3 year life. Also included: Headset microphone, Charger cable (US plug), MP3 cable (male to male 3.5mm), MP3 line in port, Microphone line in port, Removable belt clip, adjustable waist band. Possible Uses: Costumes, Props, Electronic sound effects, MP3 player, Teachers, Professors, Ministers, Coaches, Tour guides, and Presentations.