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Earphones inspection Headphones quality control

Headphone (Earphones; Headphones; Head-sets; Earpieces) is a pair of conversion units that receive electrical signals from a media player or receiver, converting it into audible sound waves using speakers close to the ear.

Teencher Inspection team consists of professional headphone inspection service and international trade experts, each member with extensive inspection experience and very strong sense of service. our inspection can help you to reduce logistics costs, return risk, complaints, compensation and potential brand reputation due to quality problems.

  • Product Detail

1.Inspection Environment and Requirement

-Requirement for place of inspection:Light from a power of at least 500 Lux.

-Perspective:The products must be tested by every angle.

-Distance of viewing:In doubts, check the products from a distance of 30 cm. If it is not visible, it is no defect. View the items by various angles.

2.Visual Non­Conformities Standard

Visual non­conformities as stated below are typical defects during production and must be handled either by means of suitable measuring or comparison practices. A practical method is to compare defects either against the specification guide or against provided samples.

-Not permitted any sharp point/sharp edge.

-Not permitted infestation of live insect.

-Not permitted blood mark

-Not permitted heavily odor.

-Not permitted crack mark,chipped edge,burr, dent mark,scratch mark etc.

-Not permitted any rust mark.

-Not permitted malfunction,noise etc.

-Not permitted wrong printing,missing printing etc.

-Not permitted unreasonable gap

-Not permitted burn mark,water spot,color stain,oil stain,dirty, impurity mark etc.


3.Field Test & Measurement

-Color shade check

-Function check

-Smell check

-Product dimension check

-Product weight check

-Barcode readability check

-Cable length check

-Pull test on the Mic and earphone

-Impedance check

-Sensitivity test

-Frequency response test

-Current test 

-Fatigue test 

-Unit drop test

-Rub test

-Tape test

-Internal check

-Quantity per carton check
-Carton dimension check

-Carton gross weight check

-Carton drop test

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