Portable UHF Wireless Voice Amplifier Adopt UHF wireless transmission technology, no need to carry the device any more, completely hands-free, more convenient and comfortable. Widely used: teaching, tour guide, sales promotion, yoga, lectures, meetings, karaoke, fans singing, morning exercise, dance, training and so on purpose | Bluetooth Speaker It’s not only an headset mic voice amplifiers but also a portable Bluetooth Amplifiers, you can stream your favorite music from any type of Bluetooth-enabled mobile device, up to 33 feet away. | Multifunction & Cost-effective Voice Amplifier LY-042 can support FM radio, TF card, USB flash disk, AUX audio play and voice recording. LY-042=Voice Amplifier+TF/USB card speaker+Bluetooth speaker+recorder+FM radio |