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Aker portable voice amplifier PA megaphone
Electronic Features:

Power Output:10 Wats 

Frequency Response: 100hz ± 13db1khz ± 1db

Current Consumption:150mA

Speaker Sensitivity:53 dBV/A +- 3 dB

Power Source: Built-in rechargeable lithium batteries.

Lithium Batteyr capacity:1000 mhA 

Battery Life:6-8 hours,2-3 years(replacements available)

Weight (N.W/G.W):0.28KG/0.45KG

Material:ABS plastic

Package Included:

1.Headset microphone 2.Battery charger 3.Mp3(audio) cable(male to male)

4.Adjustable waist belt 5.Carry bag 6.Quality warranty card Function:

1.Portable waistband voice amplifier

2.Mp3/iphone/ipad audio amplifier

Adaptable usage:

1.For teaching use(indoor) voice amplifier

2.For tour guiders(outdoor) voice amplifier 

3.Public address,promotion waistband voice amplifier 

4.Mp3,iphone,ipad audio loud speaker

Advantage:

1.Super mini size(95mm*85mm*35mm)

2.Extremely economic for teachers