Why I Can't Live Without This $10 USB-C Splitter

The removal of the headphone jack from smartphones has sparked years of debate among Android users. For specific use cases such as high-quality wired headphones or connecting external microphones during video recording, the impact of this change is still significant. Tom Bedford from Android Police introduces his solution to this issue: a $10 (approximately 1,600 yen) USB-C splitter. We examine how practical this small accessory is for content creators and audio enthusiasts.

The Fallout from the Disappearance of the

Headphone Jack

It has been a while since smartphones began ditching the headphone jack. Especially among Android devices, models equipped with the 3.5mm jack have rapidly dwindled, with the exception of some entry-level and gaming models. In terms of sound quality, wired connections are theoretically superior to wireless connections (Bluetooth), and wired connections remain valuable in scenarios requiring lossless playback or low latency.

However, the loss of the headphone jack goes beyond mere inconvenience in audio playback. As Bedford points out, in scenarios like video recording or podcast production using smartphones, it becomes challenging to simultaneously connect an external microphone and charge the device or use monitoring headphones. Since the USB-C port handles audio output, charging, and data transfer, it is unable to fulfill multiple functions simultaneously with just one port.

The Practical Solution of a USB-C Splitter

Six years ago, Bedford purchased a USB-C splitter priced at just $10. By simply plugging it into the USB-C port, it allowed him to simultaneously use two ports: one USB-C for charging or data transfer and one 3.5mm jack for audio output. This simple accessory has become indispensable for him, and here’s why:

1. Simultaneous Charging and Wired Headphone Use: During long video streaming or gaming sessions, it allows charging while using wired headphones.
2. Flexibility for Content Creation: While filming videos on a smartphone, it enables simultaneous connection of an external microphone via USB-C and audio monitoring through the 3.5mm jack—facilitating workflows that would otherwise be impossible with a single USB-C port.
3. Affordability and Portability: At just $10, it is affordable and portable enough to carry around without fearing loss or damage. While other similar products with more features are available on platforms like Amazon, the basic functionality offered by a $10 splitter is sufficient for most users.

Bedford emphasizes that “a USB-C to 3.5mm adapter alone isn’t enough.” While basic adapters only convert the port, they don’t allow for simultaneous charging and audio output, making splitters the real solution. For content creators in particular, this ability to “connect multiple devices simultaneously” is invaluable.

Versatility and Points to Consider

USB-C splitters come in a wide range of types and price points. Affordable options are available for under $10, while higher-end models with built-in DAC (Digital-to-Analog Conversion) chips can cost $30–$50. While DAC-equipped models offer superior audio quality, basic splitters deliver adequate performance for most users.

One caveat is that cheaper splitters may limit charging speeds. Products not compatible with USB Power Delivery (PD) may not support fast charging, so users prioritizing charging speed should look for compatible models. Additionally, some smartphones have USB-C port specifications or firmware limitations that may prevent certain splitters from functioning properly for audio output.

Despite these limitations, the convenience offered by a $10 investment is significant. The idea of expanding smartphone ports with such accessories reflects a DIY spirit, where users compensate for the features removed by manufacturers.

Editorial Opinion

In the short term, accessories like USB-C splitters serve as practical and in-demand solutions to mitigate the inconvenience caused by the removal of headphone jacks. For users focused on content creation or high-quality audio, a $10–$20 investment can considerably improve their workflow, making these accessories highly valuable. It is likely that this niche market will continue to persist in the future.

In the long term, the true solution lies in either expanding the number of ports on smartphones or advancing high-quality, low-latency wireless technology. With the adoption of USB4 and Thunderbolt, the technical groundwork for simultaneously handling audio, charging, and data transfer with a single USB-C port is gradually being laid. However, as Android Police points out, the dynamic in which third-party manufacturers “supplement” the features that smartphone makers continue to “remove” is likely to persist in various forms for the foreseeable future.

As an editorial point, one must question whether smartphone manufacturers truly understand the practical needs of users, such as simultaneous charging and wired audio use, even for high-end devices.

References

• “My phone doesn’t go anywhere without this $10 accessory; it’s better than a headphone jack”, by Tom Bedford — Android Police, 2026-07-11T17:00:11.000Z (ARR)
• Source URL: https://www.androidpolice.com/my-phone-doesnt-go-anywhere-without-this-10-accessory/