China Inspection

Shenzhen WeCheck CTS Co Ltd

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Preshipment Inspection > Bluetooth Tws Wireless Headset Headphone Earphone Speaker Router Wifi

The inspection procedures for this lines of products are:

  • On-site safety, regulation, & function testing
  • Packaging, safety and drop tests
  • Measurements & sizes check
  • Product specs, and special requirements check
  • Quantity & assortment verifying
  • Aesthetic, workmanshipment, surface and function check
  • Labels, markings, logos & barcode check

Our Checklist for Bluetooth speaker pre-shipment inspection:

  • Perform a carton drop test on the export cartons:10 times(1 corner 3 edges 6 faces)
  • Smell check-check if there are any strong offensive odor-II
  • For 3M tape adhesive test: perform test on coating (painting/plating/ screen printing, etc) with 3M tape.-S2
  • Perform a rub test for printing and marking ; -S2
  • Perform a function test - match and receive the Bluetooth signal.
  • - Connect time – within 6 seconds
  • Perform a fatigue test for all adjustable part.
    For each button function, including power on/off, volume +/-, forward/backward.
    Perform a check for blue tooth range and phone check(6-10m) -S2
  • Perform wobble test, put the unit on the flat surface, the unit should not tip or wobble during the test.
  • Perform an endurance test (life test) during the whole inspection period
  • Internal performance check. –S1
  • Talkback function: MIC
  • Battery Voltage / Capacity: 5V +/- 0.5V
  • output power: 2M (1K HZ, THD 10%)
  • Perform a Hi-pot testing -II
  • Perform the standard power test-II
  • Power consumption check:3Wx2(W=U2/R)
  • .......

earphone quality assurance

Visual Inspection Checklist (a random example):
Dent mark 1pc
Scratched mark 2pcs
Broken 3pcs

3rd party preshipment products goods factory onsite inline final Random AQL PSI TPI FRI DUPRO third party on-site in-line pre-shipment QA QC check quality control assurance inspection services in China India Vietnam Thailand Malaysia Bangladesh Taiwan.