Small recording, loudspeaker: can be recorded, put, U disk play, sound amplification, if the radio is better, please recommend
According to the mode of use: can be divided into wired amplifiers and wireless speakers;According to the use: it can be divided into teaching type, loudspeaker, guide type loudspeaker, entertainment loudspeaker.
The loudspeaker, as its name suggests, means to amplify the sound and spread it further. The loudspeaker has more penetrating power than the speakers.
Loudspeakers can be divided into several types according to their size, mode of use and use. Each has its advantages. Portable speakers are generally only power 3--8W because of shape, size, and horn. But the wireless megaphone and the wired loudspeaker are different in size and different in use. The smaller size is suitable for the use of teachers and guides. They are hung on the waist to make the hands more free, and the power is usually 3W-8W. Large, suitable for outdoor activities, summer camps, extra-curricular lectures, such as large traffic flow, power is 35W---95W. The loudspeaker is according to the use of lithium battery type as a classification of. It solves the environmental pollution problem of traditional dry battery, it is mainly used for power amplifier of mobile phone lithium battery technology.
