Quality Control, Engineering & Manufacturing Support
OEM / ODM Quality & Manufacturing Stability

Located in Shenzhen and Dongguan, our manufacturing facility specializes in a comprehensive range of professional audio equipment. Our production lines are dedicated to manufacturing microphones for handheld, instrument, PA systems, conference, gooseneck, communication, and intercom applications, alongside a variety of headphones and headsets.

Every microphone and headphone order undergoes a rigorous full inspection at our facility, ensuring we consistently deliver the highest quality standards to our clients.
For B2B buyers, product quality and manufacturing stability are paramount. YOGADA supports OEM / ODM projects through seamless engineering collaboration, extensive manufacturing expertise, and rigorous quality control procedures.
Our team can assist with:
- Product specification review
- Acoustic and functional evaluation
- Circuit modification discussion
- Component and material selection
- Sample testing and refinement
- Production planning
- Quality inspection
- Packaging and shipment coordination
Depending on the product type and specific customer requirements, YOGADA manufactures audio solutions fully compliant with CE, RoHS, and other project-specific regulatory standards.
Systematic Quality Control Workflow
YOGADA operations are strictly governed by an ISO 9001-certified Quality Management System to ensure predictable yield rates and verifiable product reliability. We include:
- Incoming Quality Control (IQC): Raw materials are sampled according to MIL-STD-105E Level 2 standards. Applicable components undergo 100% analysis via XRF Spectrometer to verify material composition and ensure strict RoHS compliance.
- In-Process Quality Control (IPQC): Production lines are subject to continuous real-time monitoring to immediately identify and correct deviations, ensuring consistent adherence to manufacturing specifications.
- Final Quality Control (FQC): Finished products undergo objective acoustic and electro-acoustic measurements utilizing industry-standard B&K Audio Analyzers and the CLIO System.
Professional Testing & Reliability Facilities
To guarantee product lifecycle stability and long-term reliability, YOGADA maintains comprehensive in-house testing and analytical facilities:
- Anechoic Chamber: Provides a strictly controlled environment for accurate acoustic baseline measurements and electro-acoustic analysis.
- XRF Spectrometer & RoHS Verification: Confirms precise material composition and ensures the absence of hazardous substances, fully complying with global environmental directives and safety standards.
- Reliability & Environmental Testing: Utilizes programmable temperature and humidity chambers to simulate extreme environmental conditions, rigorously verifying product durability and long-term lifecycle stability.
Our quality assurance commitment extends beyond the manufacturing floor. YOGADA also provide comprehensive post-delivery technical support and efficient issue resolution to ensure continuous product stability in real-world field applications.

more photos
- Cellular Manufacturing for Microphones and Headphones.
- Production Line for Microphones and Headphones.
- SMD Plugin.
- Magnetic Charger for Microphones capsule.
- Cable flexibility test machine for microphones and headphones, our products are finish reliability Test, drop test..etc before the model to be MP.
- Switch Life Tester: As a professional audio equipment manufacturer, we ensure that even the smallest components undergo rigorous lifecycle testing to guarantee uncompromising product quality and long-term reliability.
- XRF Spectrometer (SEA1000A Ⅱ): Deploys X-Ray analysis on all raw materials to verify exact chemical composition and guarantee full compliance with RoHS and CE directives.
- Artificial Ear (Ear Simulator)
- Frequency Curve Check in our QA dept to ensure each headphone or microphone will be in standard.
- Strict pre-assembly voice coil inspections ensure optimal acoustic quality.
- CLIO IEA EA-2 System : Conducts precise electro-acoustic analysis to guarantee premium audio fidelity.


