Wireless neckband microphone for teaching sound amplification

Abstract

The invention provides a wireless neckband microphone for teaching sound amplification. The wireless neckband microphone comprises a first shell, a second shell, a flexible connecting rod, a sound pickup, a wireless infrared transmitting module, a power switch key, a power state indicator lamp, a Type-C interface, a battery, an audio line auxiliary input port with the diameter of 3.5 mm and a driving circuit, one end of the first shell is connected with the first end of the flexible connecting rod, and one end of the second shell is connected with the second end of the flexible connecting rod; the driving circuit is arranged in the first shell, and the sound pickup and the wireless infrared transmitting module are arranged outside the first shell; a battery is arranged in the second shell, and the power switch button, the power state indicating lamp and the audio line auxiliary input port with the diameter of 3.5 mm are arranged outside the second shell. The sound pickup, the lithium ion battery and the driving circuit are highly integrated in a portable and integrated mode, an auxiliary wearing device is not needed, the function of the wireless microphone for sound reinforcement is achieved, the connecting rod has large elasticity, wearing on the neck is easily achieved, and the wireless microphone has the dual characteristics of being light, handy and convenient to use.

Description

technical field [0001] The invention relates to the field of audio technology, in particular to a wireless neckband microphone for teaching sound reinforcement. Background technique [0002] At present, the types of wireless microphones include handheld, head-mounted, lavalier, and necklace straps. In radio and television and large-scale performance venues, depending on the type of program, three types are generally used: hand-held, head-mounted, and lavalier. Program hosts and singing mostly use hand-held microphones; dramas and operas mostly use lavaliers or head-mounted microphones. microphone. In the teaching field, two types of microphones are generally used: hand-held and necklace-mounted microphones. When using the microphone on a large stage, the distance between the microphone and the speaker / horn can be kept, and the microphone pickup itself is not pointed directly at the speaker, so it is less likely to cause acoustic feedback - the "howling" situation, but in t...

AI Technical Summary

Problems solved by technology

Long and excessive speeches make most teachers suffer from pharyngitis symptoms

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