This product is a wireless loudspeaker, made of high-quality materials, durable and able to serve you for a long time. Equipped with UHF wireless microphone, it is easier and more convenient to use. The excellent production technology makes it have good stability and can receive signals from a long distance. The AUX interface can be used as a computer o. It is a very convenient and practical amplifier, which will well meet your needs. Features -Color: Random Color -Material: Magnet, ABS -Size: About 11.40X8.60X3.50cm/4.48X3.38X1.38inch -Frequency response range: 1 (Hz) -Power: 30W -Rated voltage range: DC 36V -It is made of high-quality magnet and ABS material, which is durable and has a long service life. -Equipped with UHF wireless microphone and belt, easy to use, can bring you great convenience. -It has a wide range of applications and can be used in lectures, teaching, square dancing, conferences, sales, etc. -The excellent production technology makes it have good noise reduction effect and excellent stability, and it can also be used as a computer o. -You can give this convenient and practical loudspeaker to professional friends such as teachers or tour guides, and they will be very happy.