SHIDU Portable Mini Voice Amplifier with Wired Microphone Headset and Waistband, Rechargeable Personal Amplifier Supports MP3 Format Audio for Teachers Tour Guides Coaches Yoga Fitness Instructors

【Powerful & Original Sound 】The voice amplifier is in compact size, but with output crystal sound and no noise. The stable performance is perfect for amplifying your sound and saving your throat. 【Wide Coverage Area 】SHIDU voice amplifier amplifies sound clear, no noise, no whistling, no distortion. It can effectively amplify your voice and save your throat. Output power of 10W can cover 11800 sq.ft (1100 ㎡) of sound, able to fill a 100 people large room. 【Long Battery life】 The voice amplifier with a 1800mAh built-in big rechargeable lithium battery provides 12 hours amplify time and 10 hours music time with a full charge. It takes only 3-5 hours to fully charge. 【Compact and Easy Carry Around 】 The portable microphone and speaker is in compact size and super lightweight (only 0.36 lbs), you can use the back detachable clip to fix it on your belt or pocket, or you can also tie it around your waist or hang it on your neck with the help of the waistband. 【More Function 】Supports TF (Micro SD) card playback and USB flash drive playback. Repeat individual songs, loop all music and switch songs. Great for teaching, training, tour guide, coach, shopping mall, speech, outdoor, singing, etc.