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10W Voice Amplifier Mini Portable Audio Speaker Natural Stereo Sound Wired Microphone Loudspeaker for Teachers Speech Why Choose Us: Ultra-Portable Design Of Loudspeaker - Can Be Worn Around The Waist With The Help Of A Waistband Comes With An Advanced Microphone That Offers Crystal Clear Sound Loud Enough With 10 W Output - Ideal For Groups Of 10-50 People Hafif, Şık ve Şık Tasarım Speaker Can Work As For Mobiles, Computers, iPads, Tablets With The Help Of Included AUX Cable Supports USB Flash Drive Nd-Fe-B Magnet Trumpet Which Is King Of Clear Sound Ensures Strong Penetrating Power Sound And Wide Coverage Specifications: Max output power: 10W Output Impedance: 4Ω Charging Voltage: DC 5V 500mA Music-play time: 6-10 hours Frequency response: 90Hz-Hz Work temperature: -10℃-45℃ Amplify Time: 8-12 Hours Charging time: 3-5 hours Main Features: 1.Patented appearance 2.Şık, ergonomik ve konforlu tasarım; 3.Power Double Magnetic Trumpet --- More Clear and Penetrate rating 4.10W power output, sound coverage up to 800㎡; 5.Adopt Acoustic amplification electroacoustic system 6.Equipped with special acoustic microphone --- Hi Fi original sound amplification 7.Super MP3 audio encoding technology --- supports TF card and USB flash drive