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Portable Voice Amplifier Rechargeable Vioce Amplifier with Wired Microphone Headset & Waistband for Teaching Singing

Portable Amplifier: The powerful voice amplifier and speaker. Unique appearance and light weight. Made of imported ABS and UV materials, it feels good and has good sound quality.|Rechargeable Battery: Built-in 2200 mAh rechargeable lithium battery, the standby time can last for 18-22 hours, and it can be used continuously for more than 12 hours after being fully charged.|Professional Sound Reinforcement Circuit: Built-in DSP five-level mixing system to amplify the sound (reverberation sound). It supports AUX audio input and can be used as a computer speaker.|Multi-functions: Support 32GTF card music player, can directly play MP3, WMA, WAV format audio. stereo function, automatic search and save stations, etc.|Applications: With adjustable belt and detachable belt clip and wired headset microphone, it is suitable for teaching, coaches, singers, training, tour guides, shopping malls and outdoor speeches, etc.

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it is portable and easy to use.    Feastures:  Portable Amplifier: The powerful voice amplifier and speaker. Unique appearance and light weight. Made of imported ABS and UV materials, it feels good and has good sound quality.  Rechargeable Battery: Built-in 2200 mAh rechargeable lithium battery, the standby time can last for 18-22 hours, and it can be used continuously for more than 12 hours after being fully charged.  Professional Sound Reinforcement Circuit: Built-in DSP five-level mixing system to amplify the sound (reverberation sound). It supports AUX audio input and can be used as a computer speaker.  Multi-functions: Support 32GTF card music player, can directly play MP3, WMA, WAV format audio. stereo function, automatic search and save stations, etc.  Applications: With adjustable belt and detachable belt clip and wired headset microphone, it is suitable for teaching, coaches, singers, training, tour guides, shopping malls and outdoor speeches, etc.    Specifications:  Product Name: Voice Amplifier  Model: K300  Material: ABS/UV  Color: Black, Green, Purple(Optional)  Distortion: 1%(3.7v,1Khz,1W)  Sensitivity: 80db  Impedance: 2 Ω  Signal-to-noise Ratio: ≥75dB  Frequency Response Range: 40Hz-20KHz  Llithium Battery Capacity: 2200mAh  Working Voltage: DC 3.7V  Charging voltage: DC 5.0V  Output power: 5W&nbsp;  Input Power: Power Adapter/USB/ Li-ion  Display: LED&nbsp;  Speaker: 2.5 inch  Operating Temperature: -5 ~40℃  Audio Format: MP3/WMA/WAV  Amplifier Size: 11.7*8.6*2.9cm/4.61*3.39*1.14in  Amplifier Weight: 253.5g/8.91oz  Package Size: 17.2*12.5*7cm/6.77*4.92*2.76in  Package Weight: 402.5g/14.20oz    Packing List:  1* Voice Amplifier  1* Wired Microphone Headset  1* Waistband Belt  1* USB Cable  1* User Manual