SHIDU Voice Amplifier for Teachers Portable Microphone and Speaker

【 Powerful&Original Sound 】 The SD-258 voice amplifier is in compact size, but with output crystal sound and no noise is loud enough to cover a room with a large group of 120 people. 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 large room.【 Long Battery life and Multifunctional 】 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. 10W output power. Supports TF (Micro SD) card playback and USB flash drive playback. Repeat individual songs, loop all music and switch songs.【 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.【 Widely Used 】 Made of wear-resistant material, not easy to break, fashionable shape and appearance. Great for teaching, training, tour guide, coach, shopping mall, speech, outdoor, singing, etc.【 Warm Tips and Guarantee 】 Please keep the speaker and mic for a distance and facing away each other to avoid the signal affected. Worry -Free Warranty. We provide return and refund without reason in 30 days, and 36-month warranty, and lifetime technical support.