Classroom - Optimized for teachers in classroom settings This voice amplifier delivers excellent audio with 20W output, filling classrooms. Crisp highs and full bass replicate natural vocal and music resonance. The UHF wireless headset microphone transmits reliably to the speaker from over 180 feet without dropouts. Dual antennas maintain the headset mic connection during movement so teachers are heard clearly roomwide without shouting strain.

Simply Operated - This voice amplifier delivers seamless, hassle-free operation. The wireless microphone headset only needs pairing once initially, then reconnects automatically when powered on again, eliminating repeating setup steps. Intuitive controls and LED screen make the amplifier simple to operate for teachers. Just power on and begin teaching with instant voice amplification ready for class, without complicated settings or menus, in a portable compact unit. One-time pairing plus effortl

Portable Karaoke Voice Amplifier - This voice amplifier features three modes including Karaoke mode which allows playing background music from a Bluetooth-connected phone while amplifying your voice. Karaoke mode adds a mixing effect for creative vocal performances. The wireless microphone headset transmits your voice clearly over customizable background music tracks from your device. Compact and battery-powered, this karaoke voice amplifier provides portable fun anywhere.

Versatile Voice Amplifier with Bluetooth 5.0 and Recording - This voice amplifier offers Bluetooth 5.0 for streaming music and audio wirelessly from devices, plus Aux, USB, and TF card playback. Integrated recording functionality allows directly saving microphone audio to USB flash drives and TF cards. Enjoy seamless music augmentation and capture amplified vocals, lessons, or performances. With modern media connectivity and onboard recording, this amplifier enhances classroom voices for today's

Instant Emergency Alarm Voice Amplifier for Classrooms - This voice amplifier equips teachers with an SOS alarm button that sounds a loud siren from the speaker when pressed, instantly signaling students to evacuate during emergencies. The piercing alarm overrides any audio being played. This critical safety feature enables teachers to quickly implement evacuation procedures and account for all students in the event of a dangerous situation arising.

Rechargeable Voice Speaker - This voice amplifier provides over 12 hours of continuous amplified voice from its built-in battery for extended teaching days. The UHF wireless microphone is powered for 5-7 hours per full charge, keeping teachers wirelessly amplified for hours without interruption. Both the amplifier and microphone fully recharge in around 3 hours via the included power adapter. With all-day battery life powering the system and quick recharging, teachers can rely on this amplifier