This product is a waistband wireless amplifier, made of high-quality materials, convenient and practical, and can serve you well. Equipped with UHF wireless microphone, it is easier and more convenient to use. The product has good stability and noise reduction function, which can help you transmit information more clearly. It is a very convenient and practical amplifier, and it will be your excellent choice. Color: Black Material: Magnet, ABS Size: About 12.60×9.00×3.60cm/4.95×3.54×1.41inch Output power: 20 (W) Rated voltage range: DC 36V Frequency response range: 1 (Hz) Made of high-quality magnets and ABS materials, it is durable and safe to use. Equipped with UHF wireless microphone and belt, the waist-hung design is easier to use. With a wide range of applications, it is an excellent tool for sales, teachers, tour guides and other occupations. The excellent production process makes it have a good noise reduction effect and excellent stability, which can help you transmit information more clearly. You can give this high-quality and durable amplifier to professional friends such as teachers or tour guides, and they will be very happy.