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Product description
Jkoailiwi 2025 Upgraded Bluetooth Wireless Voice Amplifier for Teaching 
How to Connect?
1. Slide up the volume button to power on the amplifier, and with a two-second long press of the wireless lapel microphone, they will automatically pair and connect. 2. Tap the button on the wireless microphone to disconnect, tap again to restore the connection.
Bluetooth Connection 
Support TF Card & U Disk
20m Transmission Distance 
Small in Size
1 Teacher
2 Yoga
3 Tour Guide
4 Conference
How do I connect the wireless microphone to the amplifier?
Slide the volume button to power on the speaker, then press and hold the wireless microphone for 2 seconds to turn it on. The devices will automatically pair.
How do I disconnect my wireless microphone?
Tap the button on the wireless microphone to disconnect, tap again to restore the connection.
What is the Bluetooth name of this wireless voice amplifier?
S57
【Warm Tips】Before First Use: Fully charge both the voice amplifier and wireless microphone using the included charging cable. Power On & Pairing: Slide the volume button upward to turn on the speaker. Then, press and hold the mic’s power button for 2 seconds to power it on. The devices will pair automatically—a solid green light indicates a successful connection. To reconnect, press the mic’s power button once. Press it again to reconnect.
【Reduce Teaching Burden】Jkoailiwi voice amplifier wireless microphone includes a wireless lapel microphone that easily clips to a collar or tie. This design provides a clear advantage by eliminating the discomfort of traditional headset microphones. It greatly lightens the teaching load, making classroom instruction more comfortable and efficient!
【Bluetooth 5.3 Connection】The Jkoailiwi voice amplifier for teachers is equipped with the latest Bluetooth 5.3 chip, facilitating quick connections to your phone, iPad, and other electronic devices for seamless playback of your favorite music. Its Bluetooth name is “S57”, and the wireless transmission distance is 20 meters.
【Teacher Must Have】This portable voice amplifier is an ideal and practical gift for educators who frequently address or instruct sizable audiences. The amplifier features high-fidelity, clear sound output technology with no noise feedback, enabling classrooms with over 50 students to distinctly hear your voice, thereby providing effective protection for your throat.
【Lightweight and Portable】This portable wireless mic and speaker weigh merely 180g and fit in the palm of your hand. Its compact size allows for effortless portability, enabling it to be comfortably worn on your waist without causing any discomfort or burden.
Customers say
Customers find the voice amplifier delivers good sound quality, with one mentioning it cuts down on echo, and they appreciate its ease of use and effectiveness in classrooms. The device helps students hear the voice clearly, and one customer notes it’s great for online zoom exercise classes. The volume control receives positive feedback, with one customer highlighting its adjustable settings. While customers find the Bluetooth connection easy to set up, opinions about connectivity are mixed.
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