How long does the battery last on a single charge?

It provides up to 12 hours of continuous amplification on a single charge. It is designed to reliably last through a full school day or a long tour without needing to recharge, giving you peace of mind during your busy schedule.

Will there be any feedback or howling noise when using the microphone?

Our voice amplifier is engineered with advanced anti-whistling technology to minimize feedback. To ensure the performance, simply keep the microphone at a reasonable distance from the speaker and avoid pointing the mic directly at the speaker unit.

How many people can this amplifier cover? Is it loud enough for a large room?

With a powerful 10W output, this device can effectively cover up to 11,800 sq.ft, making it loud enough to be clearly heard by groups of up to 120 people. It is perfect for filling large classrooms, small halls, or outdoor tour settings.

Is it comfortable to wear all day for teaching or guiding tours?

Yes, it is ultra-lightweight at only 0.36 lbs. It comes with a detachable back clip and an adjustable waistband, allowing you to wear it comfortably on your belt, pocket, or over your shoulder for hours without feeling fatigued.

Is the setup complicated, or does it pair automatically?

It is extremely easy to use. The wired microphone headset is "plug-and-play," meaning there is no complicated pairing process required. You simply plug it in, turn it on, and you are ready to speak immediately.

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Voice Amplifier Teachers,Megaphone Speaker Portable PA System with Microphone Headset(Work of 12hours) Supports MP3 Format Audio for Tour Guides Coaches Yoga Fitness Instructors

Product ID: 71794684

Details

Brand
SHIDU
Color
Rose-Gold
Compatible Devices
Guitar Headset
Connectivity Technology
AUX USB
Item dimensions L x W x H
4.13 x 1.57 x

🎧Supports MP3 & AUX input

🔊10W crystal-clear output

🔋12-hour battery life

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$85.03

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎤 Own the room, wherever you go!

MARATHON BATTERY LIFE - Keep your sessions going all day with up to 12 hours of continuous amplification on a single charge.
BUILT TO LAST IMPRESS - Durable, stylish rose-gold design backed by a 36-month warranty and lifetime tech support.
VERSATILE AUDIO PLAYBACK - Seamlessly play MP3s from TF cards or USB drives, plus connect via AUX for wired audio input.
POWERFUL SOUND ZERO STRAIN - Amplify your voice effortlessly to reach 120+ people with crystal-clear, noise-free audio.
ULTRA PORTABLE LIGHTWEIGHT - Weighing just 0.36 lbs with a detachable clip, it’s designed to move with you—belt, pocket, or neck.

The SHIDU SD-258 Voice Amplifier is a compact, 10W portable PA system delivering crystal-clear sound to audiences up to 120 people or 11,800 sq.ft. With a robust 1800mAh battery offering 12 hours of use, it supports MP3 playback via TF card and USB, plus AUX input for versatile connectivity. Lightweight and designed for easy carrying, it’s perfect for teachers, coaches, tour guides, and fitness instructors seeking powerful, reliable voice amplification with stylish durability.

Specifications

ASIN	B07FLZPVG4
Antenna Location	Voice Amplifier for Teachers
Audio Input	AUX
Best Sellers Rank	#349 in Musical Instruments ( See Top 100 in Musical Instruments ) #3 in Power Amplifiers #187 in Portable Audio & Video
Brand	SHIDU
Built-In Media	Voice Amplifier
Color	Rose-Gold
Compatible Devices	Guitar, Headset
Connectivity Technology	AUX, USB
Connector Type	Aux, USB
Customer Reviews	4.4 4.4 out of 5 stars (4,110)
Enclosure Material	Plastic
Item Dimensions	4.13 x 1.57 x 3.35 inches
Item Weight	330 Grams
Mfr Part Number	S258
Model Number	S258
Mounting Type	Tabletop
Number of Channels	1
Output Wattage	10 Watts
Power Source	Battery Powered
UPC	759675088348
Unit Count	1 Count
Warranty Description	2

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