Aocwei – Precision Audio Engineering

Delivering high-fidelity audio solutions with cutting-edge DAC technology, OEM/ODM expertise, and innovative design since 2014. Trusted by audiophiles and global partners alike.

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4577+

Success Cases Delivered

150+

Global Locations Served

99%

Customer Satisfaction Rate

About Aocwei

Founded in 2014, Aocwei operates under JIELIAN SARL, a technology company dedicated to the research, development, design, and production of premium acoustic products. Based in Sofia, Bulgaria, we specialize in high-performance audio accessories including HIFI earphones, wireless microphones, USB-C adapters, and portable headphone amplifiers.

With a complete industrial chain, strong R&D capabilities, and advanced SMT and assembly production lines, we deliver mature OEM and ODM solutions to partners worldwide.

Expertise in OEM/ODM Audio Solutions

CS43131 Hi-Res Certified DAC Chips

Global Distribution & Support Network

Our Products

Engineered for audiophiles and everyday users alike. From USB-C adapters to HiFi portable amplifiers, every Aocwei product delivers superior sound clarity and reliability.

USB-C to 3.5mm Adapter (Purple)

Compatible with Pixel, Samsung Galaxy S20/S21/S22, Note series

✔ USB Type-C to Aux Audio Jack
✔ DAC Connector for Android
✔ Plug & Play – No Driver Needed

USB-C to Aux Adapter (Gray)

For Samsung Galaxy S20/S21, Note 20, S10, S9 Plus

✔ High-Speed DAC Conversion
✔ Durable Aluminum Housing
✔ Universal Android Compatibility

USB-C to 3.5mm (Blue)

Compatible with Pixel 6/5/4, Galaxy S22/S21/S20

✔ DAC Cable with Stable Signal
✔ No Audio Lag
✔ Compact & Travel-Friendly

USB-C to Aux (Pink)

For Android Devices – Pixel, Galaxy S Series

✔ Vibrant Color Design
✔ High-Fidelity Audio Output
✔ Plug & Play Simplicity

Portable Amp (2.5mm Balanced)

LC2100 Series with CS43131 Chip

✔ Hi-Res Certified Audio
✔ Supports 384kHz/32bit & DSD256
✔ CNC Aluminum Housing

Portable Amp (3.5mm)

Mini HiFi DAC – CS43131 Chip

✔ Real Balanced HIFI Output
✔ Adaptive Plug-and-Play
✔ Compatible with iOS/Android/Mac

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USB-C DAC Mini HiFi Amp

384kHz/32Bit, DSD256 Support

✔ Ultra-Portable Design
✔ No Charging Required
✔ Premium Sound for On-the-Go

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DEERTiME 2.4G+5G Dual-Band

Wi-Fi & Bluetooth 5.0 Enabled

✔ Dual-Band AC Wi-Fi
✔ Bluetooth 5.0 Connectivity
✔ Stable Signal Transmission

View All Products on Official Site

Why Choose Aocwei?

Innovation, quality, and reliability built into every product.

🔊

Hi-Res Audio Certification

Our DACs support up to PCM 384kHz/32bit and DSD 256, delivering studio-quality sound to your ears.

🔧

OEM/ODM Expertise

Complete R&D, design, and production capabilities. We bring your audio product ideas to life.

🛡️

Durable Build Quality

Crafted from high-density aircraft aluminum alloy with CNC precision for lasting performance.

🔄

Plug & Play Simplicity

No drivers or charging required. Just connect and enjoy high-fidelity audio instantly.

🌍

Global Support Network

Serving 150+ locations worldwide with fast delivery and responsive customer service.

⭐

99% Customer Praise

Trusted by thousands of users and partners for consistent quality and performance.

Frequently Asked Questions

Are Aocwei adapters compatible with iPhones?

Yes, but iPhones require a Lightning to USB-C adapter. Aocwei DACs are compatible with iOS devices when used with the appropriate adapter.

Do your portable amps need charging?

No. Our portable headphone amps are powered directly through the USB-C connection—no charging or batteries required.

What is the difference between 3.5mm and 2.5mm balanced output?

The 2.5mm balanced output provides higher power and lower noise for professional-grade headphones, while 3.5mm is ideal for everyday use.

Can I request custom OEM/ODM designs?

Absolutely. We specialize in OEM/ODM solutions and can customize design, branding, packaging, and functionality to your needs.

What DAC chip do you use in your amplifiers?

We use the CS43131 professional decoding chip, known for its high-resolution audio performance and low distortion.

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