Portable earphone amplifier with display screen

The utility model relates to a portable earphone amplifier with a display screen. The portable earphone amplifier comprises an amplifier body, an audio input and output base, a tuning knob and a tuning potentiometer, wherein the audio input and output base is arranged on the amplifier body; the tuni...

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Bibliographic Details
Main Author CHEN JUNNA
Format Patent
LanguageChinese
English
Published 21.08.2013
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:The utility model relates to a portable earphone amplifier with a display screen. The portable earphone amplifier comprises an amplifier body, an audio input and output base, a tuning knob and a tuning potentiometer, wherein the audio input and output base is arranged on the amplifier body; the tuning potentiometer is arranged in the amplifier body; the tuning knob is arranged on the amplifier body; the tuning knob is sleeved on an adjusting shaft of the tuning potentiometer; a groove is formed on the upper part of the amplifier body; the tuning knob is arranged in the groove; and the middle axis of the tuning knob is parallel to a transverse shaft of the amplifier body. The portable earphone amplifier has the beneficial effects of greater convenience in carrying, small size, difficulty in changing volume due to accidental touch or friction in a using process, good protection of the adjusted volume effect, avoidance of the impact of external abnormal acting force, capability of prolonging the service life of
Bibliography:Application Number: CN20132200353U