Power Source:Built-in rechargeable lithium batteries.
Lithium Batteyr capacity:2200 mhA
Battery Life:2-3 years(replacements available)
Dimension:230mm*290mm*190mm
Weight (N.W/G.W):3.275KG/5.325KG
Material:ABS plastic
A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience.