The portable voice amplifier is equipped with a UHF headset microphone. It uses UHF wireless high-frequency PA technology and a Bluetooth 4.2 chip for faster and more stable signal transmission, with a wireless connection distance of up to 30 meters in open areas. The 18W super output provides sound coverage of 1500 square meters. This wireless voice amplifier can amplify your voice clearly and loudly for groups of 20 to 300 people.

The portable amplifier has a built-in long-life 4400 mAh lithium battery, providing up to 12 hours of working time after a full charge, which takes only 3 to 5 hours. However, the wireless microphone lasts 4 to 5 hours. For longer usage, we recommend ordering a wired version or an additional wired microphone.

The amplifier features 2-color silicone shells and an injection molding process on the interface, making it waterproof, shockproof, and dustproof. The speaker supports Bluetooth, recording, aux input, TF card, and USB. You can easily play music from your Bluetooth-enabled devices like smartphones and tablets via Bluetooth, as well as from non-Bluetooth devices through a 3.5mm aux input.

The microphone amplifier comes with an adjustable waistband strap. Its compact size is 9.6 cm (L) x 4.5 cm (W) x 12 cm (H) and it weighs 388 g. If you prefer not to wear the voice speaker amplifier, you can move freely around the room with the UHF wireless headset, allowing you to keep your hands and waist free. The Bluetooth voice amplifier is perfect for teachers, tour guides, meetings, yoga, supermarket advertising, and more.

This voice amplifier is suitable for teachers in the classroom and is also a great choice for yoga and fitness instructors. When using the voice amplifier, please charge both the microphone and speaker first, and keep them at a distance to avoid noise.