aker voice amplifier 12watts black mr1505 portable for teachers coaches tour guides presentations costumes etc. .
model aker mr1505color blackpower output 12 wattsfrequency response 100hz 13db1khz 1dbdimensions 4.13 in x 3.31 in x 1.38 in 105mm x 84mm x 35mm weight w batteries 0.92 lbs 420 g voltage 7.5 vcurrent consumption 150maspeaker sensitivity 53 dbv a - 3 dbpower source built-in lithium rechargeable batteriesbattery life 10-15 hours 6 hour recharge 2-3 year life replacements available also included headset microphone charger cable us plug mp3 cable male to male 3.5 mm mp3 line in port microphone line in port removable belt clip adjustable waist band carry bag . possible uses costumes props electronic sound effects mp3 player teachers professors ministers coaches tour guides and presentations . features rechargeable lithium batteries that last 10-15 hours of continuous use before needing a charge . battery life will last 2-3 years . sound covers over 4 500 square feet . small and portable . can be worn inside a costume in many different ways . comes with adjustable waist or neck band and a removable belt clip . can also be used mp3 speaker . the amp has a microphone input and a mp3 input . the amp will accept signals from both input ports and out through the speaker at the same time .