Audio, Video & Entertainment Products Inspection Service
Guangdong China Inspection and Testing Co., Ltd. is a professional China inspection company providing third party inspection China services for importers, brands, retailers, wholesalers, sourcing agents, and cross-border e-commerce sellers. As a trusted China inspection service and Quality Control in China & Asia Quality Control Solution provider, we deliver Product inspection services in China and Factory inspection services in China for audio, video, and entertainment products.
Our Third Party Quality Inspection covers audio equipment, video playback devices, and gaming and entertainment accessories. We help clients verify safety, function, appearance, packaging, and shipment accuracy before goods leave the factory. Whether you require Amazon FBA Inspection, FBA Inspection Services, Pre-shipment Inspection (PSI), Container Loading Supervision (CLS), Pre-Production Inspection (PPI), During Production Inspection (DPI), or full Production Quality Control, our inspectors provide reliable on-site Quality Control Services in China.
Product Categories We Inspect
We provide Product Inspection and Quality Control Inspection for a wide range of audio, video, and entertainment products, including:
Audio Equipment: Bluetooth earphones, wired earphones, Bluetooth speakers, desktop speakers, soundbars, radios, and MP3 players.
Video Playback Devices: home projectors, televisions, TV players, and digital photo frames.
Gaming & Entertainment Accessories: game controllers, VR headsets, audio adapters, and crossover components.
Related Categories: Homeware & Kitchenware Inspection, Kitchen Appliances Inspection, Household Appliances Inspection, and Lighting Products Inspection.
Core On-Site Inspection Items
Our inspectors perform on-site Quality Control based on AQL sampling, ISO 2859-1, and ANSI/ASQ Z1.4 standards. Key inspection items include:
1. On-Site Safety Testing (Core)
Audio, video, and entertainment products directly affect user safety. Our inspectors use portable safety testing instruments at the factory, without sending samples to a laboratory. Tests include:
High-Voltage Withstand Test: Applies specified high voltage between live parts and accessible metal parts for 1 minute. Breakdown, flashover, or excessive leakage current is judged as a failure.
Grounding Continuity Test: For Class I appliances with protective grounding, applies specified current and measures resistance between the grounding terminal and accessible metal parts. The limit is generally ≤0.1Ω.
Leakage Current Test: Measures leakage current at 1.06 times rated voltage under normal operation. Class I appliances are generally limited to 0.75mA, Class II appliances to 0.25mA, and handheld or portable devices to stricter limits.
Power & Current Check: Measures actual input power and current at rated voltage. Deviation from rated power is typically required to fall within +5% to -10%.
Battery Safety On-Site Check: For lithium-battery products such as Bluetooth earphones and speakers, we verify whether the battery model matches the UN 38.3 report, check for swelling, leakage, deformation, clear markings, and safe battery compartment structure. Lithium battery safety should comply with GB 31241 requirements.
Charging Function Test: Tests charging input/output functions, charging current and voltage, port stability, and charging indicator status. For Bluetooth earphones, the charging case wired charging and discharging functions are also checked.
2. Audio Equipment Inspection
Bluetooth Earphones: Pairing with different phone and tablet brands, stable connection within effective range (typically 10m), multi-device memory if applicable, audio playback for high/low tones and vocals, no noise, distortion, or interruption, smooth volume control, no distortion at maximum volume, call quality, speaker impedance, sensitivity, frequency response, LED indicator, charging case opening/closing, magnetic strength, and silicone ear tip fit.
Bluetooth Speakers / Desktop Speakers: Fast and stable Bluetooth pairing, clear audio playback, maximum-volume THD as a key item (over 10% is generally a major defect), battery life against rated value, charging port function, button feel, housing appearance, mesh strength, and speaker unit installation. Measured power should generally be at least 80% of rated power.
Soundbars: Connection to TV or audio sources, HDMI/optical/Bluetooth input switching, audio output, subwoofer connection and effect, remote control function, and wall-mount accessory completeness and installation strength.
Radios / MP3 Players: Power on/off, volume adjustment, channel search, playback, earphone jack, USB port, battery compartment structure, antenna function, and display clarity.
3. Video Playback Device Inspection
Home Projectors: Startup, projection clarity, auto focus, auto keystone correction, visual brightness assessment, visual color gamut assessment, HDMI/USB port fit and contact, remote control, cooling fan noise, lens condition, cooling system operation, odor check, visual lens distortion assessment, and laser safety markings and warnings for laser projectors.
Televisions / TV Players: Startup, screen display for dead pixels, dark spots, bright lines, input source switching, remote control, volume adjustment, standby/shutdown, screen panel scratches, bubbles, ripples, housing appearance and assembly gaps, port fit and contact, base or wall-mount installation strength, and accessory completeness.
Digital Photo Frames: Screen display, photo switching, USB/SD card reading, remote control, brightness adjustment, housing appearance, and stand installation strength.
4. Gaming & Entertainment Accessory Inspection
Game Controllers: Surface smoothness, no burrs, scratches, bubbles, paint loss, or color deviation, especially on buttons, joysticks, and grips. Button feel, joystick centering without drift, trigger travel and rebound, vibration motor function, wired/wireless connection and pairing, and USB port internal structure.
VR Headsets: Surface condition free from dents, scratches, cracks, deformation, blistering, cracking, or coating loss. Visual assessment of field of view, image distortion, and brightness uniformity. Interpupillary distance adjustment, head strap elasticity and adjustment, heat dissipation, display startup, positioning function, controller sensitivity, and button feedback.
Audio Adapters: Critical dimensions such as plug outer diameter, sleeve inner diameter, contact spacing, and plug length. Continuity and audio signal transmission with low noise floor. Insertion and withdrawal force, plating appearance, and housing condition.
Crossover Components: Appearance, dimensions, weight, terminal strength and marking clarity, inductor coil wire diameter and core condition, capacitor appearance, and continuity testing for open or short circuits.
5. Appearance & Workmanship
Housing appearance: scratches, cracks, shrinkage, deformation, color deviation, stains, bubbles, and flow marks.
Edges and corners: all accessible edges must be smooth, with no sharp burrs or chipping.
Buttons and switches: secure assembly, clear pressure feel, defined positions, and no jamming or accidental contact.
Interfaces: USB, Type-C, HDMI, and 3.5mm ports must be flat and aligned, with no rust or oxidation on internal contacts.
Power cord and plug: no damage, indentation, or twisting; plug type must comply with the target market; strain relief must be intact; 30N pull test passed.
Internal workmanship: grounding reliability, power cord fixation, no cold solder joints, no loose components, smooth wire channels, and no internal foreign objects.
Nameplate and markings: model, rated voltage/power, manufacturer, and warnings must be clear, complete, and correct. Markings should remain legible after 15s water wipe and 15s hexane wipe.
6. Labels & Packaging
Product labels: input voltage/current, brand/model, safety certification marks, and permanent markings. Packaging bags must carry suffocation warnings and ventilation holes.
Packaging protection: inner box, color box, outer carton, shipping marks, sealing method, moisture protection, and cushioning. Lenses, screens, speakers, and precision components must be properly protected.
Carton loading check: no short packing, missing items, mixed models, or wrong items.
Inspection Methods & AQL Standards
We offer flexible inspection methods based on order size, product value, and risk level:
Pre-Production Inspection (PPI): Confirms the first article’s workmanship, function, appearance, and on-site safety testing before mass production.
During Production Inspection (DPI / DUPRO): Conducts sampling during production to identify and correct quality issues in time.
Pre-shipment Inspection (PSI / FQC): Performs AQL sampling inspection before shipment.
100% Full Inspection: For high-value, high-reputation, or precision electronics, each unit is inspected to ensure zero-defect shipment.
Our inspection follows AQL sampling, ISO 2859-1:2026, and ANSI/ASQ Z1.4 normal inspection single sampling plans. Standard stable orders normally use General Inspection Level II; new suppliers, first orders, and high-end orders may be upgraded to Level III. Mandatory safety items such as grounding resistance and leakage current generally use Special Inspection Level S-1.
For Bluetooth earphones, General Inspection Level II with AQL 1.5 for major defects and AQL 4.0 for minor defects is commonly used. For premium audio products, tighter AQL values such as 0.25 for critical and 0.4 for minor may be applied upon buyer request.
| Defect Level | AQL | Judgment |
|---|---|---|
| Critical (CR) | AQL 0 | May endanger personal safety or make the product completely unusable. One defect leads to batch rejection. |
| Major (MAJ) | AQL 2.5 | Seriously affects appearance or function and likely causes customer returns. |
| Minor (MIN) | AQL 4.0 | Appearance defects that do not affect usability. |
Typical defect classification for audio, video, and entertainment products: high-voltage breakdown, poor grounding, excessive leakage current, exposed live parts, damaged or exposed power cord, missing certification marks, and battery swelling or leakage are CR. Severe housing cracks, button failure, Bluetooth pairing failure, excessive maximum-volume distortion, severe projection image distortion, joystick drift, and detached power cord sheath are MAJ. Minor scratches, rough surfaces, and slight color deviation within tolerance are MIN.
Inspection Process
Requirement Communication & Plan Confirmation: The client provides product details, target market, buyer requirements, and order information. We recommend applicable standards and provide a quotation.
On-Site Inspection: Inspectors arrive at the factory or warehouse and perform inspection according to AQL sampling or full inspection requirements, covering safety testing, appearance, dimensions, function, packaging, and labels. All findings are documented with photos and data.
Defect Classification & Judgment: Defects are classified as CR, MAJ, or MIN, with accurate counts and distribution.
Feedback & Corrective Action Follow-up: We immediately inform the factory and client, urge rework, replacement, or rejection, and verify corrective action before shipment.
Report Issuance: A bilingual inspection report is issued within 24 hours after inspection, with traceable data and complete photos.
Report Applications
Our audio, video, and entertainment product inspection reports can be used for:
Overseas buyer acceptance
Cross-border platform compliance review, such as Amazon, TEMU, AliExpress, and SHEIN
Supermarket supplier qualification, such as Walmart, Sam’s Club, and Target
Supply chain quality archives
Trade dispute evidence
Customs compliance verification
Why Choose Guangdong China Inspection and Testing Co., Ltd.
Qualified & Recognized: CMA, CNAS, ISO/IEC 17020, and ISO 9001 qualifications.
On-Site Safety Testing: Portable withstand testers, grounding resistance testers, leakage current testers, power meters, sound level meters, and Bluetooth testing software allow on-site safety and function testing without laboratory delivery.
Battery Safety Verification: On-site UN 38.3 report consistency check, battery appearance inspection, and charging function test for lithium-battery products.
Full Standards Coverage: AQL sampling, ISO 2859-1:2026, and ANSI/ASQ Z1.4 for EU, US, China, and global market requirements.
Regulatory Tracking: We monitor updates to GB 4943.1-2022, ISO 2859-1:2026, UN 38.3, and other applicable regulations.
One-Stop Service: Inspection, testing, certification, audit, and supplier coaching can be coordinated with Product Inspection, Container Loading Supervision (CLS), audit and lab testing in China, and product testing in China.
Fast Response: Professional coordination and expedited service available.
CTA
Ensure every audio, video, and entertainment product shipment meets your safety, quality, and compliance requirements. Contact Guangdong China Inspection and Testing Co., Ltd. today for a tailored Quality Control Inspection and Third Party Quality Inspection plan in China.
