In certain instances, managing a class of 60 students poses a challenge for teachers to ensure their voice reaches those seated at the rear. Given the continuous communication teachers engage in throughout the day, often in noisy environments, it’s not surprising that their vocal cords may be affected.
Recently, I encountered a portable voice amplifier by Shidu that seems tailor-made for teachers. This uncomplicated solution enhances their natural voice, ensuring even distribution across the entire room.
So, what exactly is a portable voice amplifier? As the name suggests, it’s a device designed to amplify one’s voice. Resembling a compact Bluetooth speaker, it operates by connecting to a microphone. These amplifiers find utility not only in classrooms but also for tour guides, airport ground staff, or instructors seeking vocal rest. Consider a scenario where a teacher has a sore throat and cannot project their voice—enter the voice amplifier, allowing them to conduct classes audibly.
While the speaker may not boast immense power, its performance is commendable for its size. Compact and lightweight, it easily clips onto a belt or pocket. The convenient strap at the back allows for attachment to a bag or handle. The buttons are responsive, and the device supports media playback through TF (Micro SD) card and USB flash drive. In addition to its role as a voice amplifier, it doubles as a portable Bluetooth speaker, offering a surprisingly punchy and distortion-free sound for its size.
In practical use, the portable voice amplifier proves effective both indoors and outdoors. With a 10W output, it adequately fills a classroom with up to 40 students, although it may struggle in larger spaces. It’s worth noting that pushing the volume beyond 80 percent can compromise audio quality.
Charging the device is straightforward, taking between three to five hours for a full charge, with a commendable battery life of up to 12 hours on a single charge. The adjustable wired head-worn microphone adds to the user’s comfort, allowing easy customization of the distance between the mouth and the mic.
For teachers, the Shidu portable voice amplifier emerges as a sensible investment. Through minimizing the strain on vocal cords, it addresses a common challenge faced by educators.