USB Type-C to 3.5mm Headphone Adapter with 99% Oxygen-Free Copper for Clear Audio

This Type-C to 3.5mm audio adapter cable provides a straightforward solution for connecting standard wired headphones and speakers to devices that only have a USB-C port. Many modern smartphones, tablets, and laptops omit the traditional headphone jack, making this compact adapter essential for using your existing 3.5mm earphones without upgrading to wireless models. The cable measures 10cm in length, which is short enough to avoid excess cable tangle when used with a phone in a pocket or bag, yet long enough for comfortable connection to a tablet case or laptop side port. Built with a 99% high-purity oxygen-free copper core, it helps preserve audio signal integrity during transmission for reliable sound reproduction. The adapter is offered in two colour choices, Black or White, to match your devices and accessories.

Features and Construction

The adapter is designed around a core audio-grade conductor and straightforward connectivity. Its physical build focuses on durability and signal purity for daily use with portable electronics.

Material and Build

The wire core is made from 99% high-purity oxygen-free copper (OFC), a material selected to reduce electrical resistance and minimise loss during audio signal transfer. This helps maintain the fidelity of the original sound, cutting down on interference that can degrade audio quality over longer or lower-quality cables. The outer cable has a diameter of OD2.5, which offers a balance of flexibility and protection for frequent bending and plugging.

Size and Practical Fit

With a total length of 10cm, this adapter is designed for portable convenience. It is short enough to be used as a direct connection between a phone and earbuds without dangling excess cable, but long enough to reach a headphone plug when the device is in a protective case. The Type-C male connector fits securely into standard USB-C ports, and the 3.5mm female seat accepts most TRRS audio plugs used in music listening and calls.

Uses and Placement

This adapter fills a common gap in modern device connectivity, allowing continued use of conventional audio peripherals. Its compact size makes it suitable for a range of settings from daily commutes to desktop setups.

Event or Professional Use

During presentations, meetings, or voice recording sessions, you can connect a wired lavalier microphone or monitor headphones to a Type-C tablet or laptop without needing a separate audio interface. The OFC core helps reduce line noise, which is beneficial in professional audio environments where clarity matters.

Everyday Home Use

At home, use the adapter to plug your favourite wired earphones into a modern phone for music, podcasts, or video calls. It works with gym earbuds, high-end wired headphones, and car audio aux cables, bridging the gap between older audio gear and newer USB-C-only devices.

Benefits and Buying Value

This product offers straightforward value for anyone with existing 3.5mm audio equipment. Its material choice and size support reliable performance without requiring a complete gear replacement.

Reuse and Low Maintenance

Because it lets you keep using wired headphones instead of buying wireless alternatives, the adapter is a cost-effective way to maintain compatibility with your current audio collection. There are no batteries to charge or Bluetooth pairing steps, and the simple plug-and-play design requires no software configuration.

Why Choose This Product

With its 99% oxygen-free copper core and short 10cm cable length, this adapter is a practical choice for users who value audio fidelity and portability. It is available in Black or White to suit different device aesthetics, and its compact design reduces pocket bulk compared to longer dongles. It offers a simple, reliable bridge between Type-C devices and 3.5mm audio peripherals.