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WinBridge S309 Portable Voice Amplifier for Teachers Classroom, with Wired Mic with Mute Button

$36.99 $73.98

Equipped with the upgraded ergonomically designed rotatable headset microphone, it is lightweight, comfortable, and stable to wear. Portable microphone for classroom teachers and others

Personal Microphone Headset - Equipped with the upgraded ergonomically designed rotatable headset microphone, it is lightweight, comfortable, and stable to wear. Portable microphone for classroom teachers and others.

Durable Rechargeable Battery - Come with a TYPE C charging cable and charger for fast and safe charging, which takes only 3 hours.

Mute Button Design - When you want to stop using the audio playback, simply press the mute button and it will stop amplifying immediately.


  • Winbridge S309 voice amplifier can save you from the hassle of yelling or shouting out what you wish to say to put it in a nutshell you can get through the day without suffering from hoarseness or a sore throat.

  • Original output, no distortion, low feedback, and very clear sound, 8W stable output is enough to cover up to 12,000 square feet, suitable for large rooms with 30-120 people, a powerful voice amplifier makes you can easily attract others' attention and make your voice get noticed.

  • This is one of the most compact (4.3 x 3.3 x 1.2 inches) and lightest (0.41lb) Voice Amplifiers available. The clip on the back of the amplifier frees up your hands, besides, you can wear it with the adjustable waistband (included) and we also give you a free bag to make storage easier.
  • One charge can amplify the voice for 8-10 hours, only needs 3 hours to fully charge it. Supports a USB flash drive and 3.5mm AUX audio input that can be used as a wired speaker, you can also play audio while amplifying, the designed mute button and volume control buttons make amplification more controllable.

  • Lightweight and comfortable microphone headset with ergonomic design. Compared to other microphones, It is lighter, more stable and extends better ,and supports 180° rotation, you can adjust it to your personal best pick-up position.


Product information
  • Output Power:8W
  • Battery Capacity: 3.7V/2000mAh
  • Music playing time: 6-8H(medium volume)
  • Charging voltage: DC 5.0V
  • Charging time: 3H
  • Amplifying voice time: 8-10H

What's in the box

  • 1* Voice amplifier
  • 1*Waistband
  • 1*Audio cable
  • 1*User manual
  • 1*Headset microphone
  • 1*Type-c charging cable
  • 1*Charging plug



WinBridge products are manufactured under the highest quality standards and craftsmanship. WinBridge provides a Lifetime Limited Warranty on all Voice Amplifiers (Technical Support).

WinBridge Company will repair or replace, free of charge, during the applicable warranty period (1 Year Warranty), any part or finish that proves defective in material and/or workmanship under normal installation, use, and service. If repair or replacement is not practical, WinBridge Company may elect to refund the purchase price in exchange for the return of the product. These are your exclusive remedies.


Customer Reviews

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For Bulk Order Or Wholesale Business, Please Email Us

Customer Reviews

Based on 48 reviews Write a review

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. However the return will not be accepted if the products has no defect.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. 

To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. 

You can always contact us for any return question at

Return Address: 1944 E Vista Bella Way, Rancho Dominguez, CA 90220
Contact: Ryan-Huashang-RRF
Tel: 626-934-8886
. However we also have return partner in many other country, if your return approved, we will send you the return address according to your location.

Damages and issues 
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. We will  inspect all returned items and will refund you based on the condition of the item. We award a partial refund for opened or used products.

Exceptions / non-returnable items 
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. 

Unfortunately, we cannot accept returns on sale items or gift cards. Also we do not accept the returns which the product has no defect.

The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

Defective Product and Returns Due to Our Error

If there are mistakes with your order, or products arrive defective/damaged at the time of receipt, we’ll make it right by:

Sending you replacement parts or accessories

Replacing the product or Issue a refund

we will also cover the cost of any return shipping

If the product is not defective, return shipping fees will apply and/or a partial refund may be issued

Cancelling your order

You may cancel your order, for any reason, and receive a full refund provided your order has not been shipped. Please note that a small percentage of orders cannot be stopped from shipping out of our warehouse even though they may not have physically left the premises. In these rare instances, the customer will be responsible for whatever shipping charges are incurred. 

Typically, most orders are filled and shipped within 24 to 48 hours from the time they are received. WinBridge Support can inform you of the status of your order and advise you whether or not the order can be canceled for a full refund. Once an item is shipped the terms of our Returns policy will take effect. We reserve the right to charge a restocking fee on any canceled orders. 



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