Description

The Problem – You Cannot Charge and Listen at the Same Time

Modern smartphones have abandoned the headphone jack, leaving users with a single USB-C port for everything. For example, you are on a long flight watching a movie with wired headphones, but your battery is running low. Similarly, you are on a work call that requires both audio and a stable connection, but your phone needs charging. Furthermore, using Bluetooth headphones is an option, but they require charging and can have latency issues. As a result, you are forced to choose between hearing your content or keeping your phone alive. This 2-in-1 USB-C Headphone and Charging Adapter solves that problem. Consequently, you can listen to wired headphones while charging your phone at the same time.

Dual Functionality – Charge and Listen Simultaneously

The key feature of this adapter is its ability to split the USB-C signal into two independent functions. Specifically, one branch provides a 3.5mm audio jack for headphones or auxiliary cables. The other branch provides a USB-C port for charging. Therefore, you can plug in your wired earphones and your charger at the same time. For instance, watch a movie on a plane while keeping your phone plugged into a power bank. Similarly, take a long work call while your phone charges at your desk. As a result, you never have to choose between audio and power.

High-Quality DAC Chip – Clear, Crisp Audio

Not all audio adapters deliver good sound quality. This adapter features a built-in high-quality DAC (Digital to Analogue Converter) chip. Specifically, the DAC converts digital audio from your phone into analogue sound that your headphones understand. Therefore, the audio is clear, detailed, and free from static or interference. For example, music sounds rich with good bass response. Similarly, phone calls sound natural and crisp. As a result, you do not sacrifice audio quality for convenience.

Fast Charging Support – Quickly Power Your Phone

Some adapters only support slow, trickle charging. This one is different. It supports fast charging protocols up to 60W Power Delivery (PD). Specifically, pass-through charging allows your phone to charge at its maximum supported speed. For example, a Samsung Galaxy S23 or Google Pixel charges from 0% to 50% in approximately 30 minutes while you listen to audio. Similarly, an iPhone 15 or 16 charges at full speed. As a result, your phone charges quickly, not slowly, when using this adapter.

Plug and Play – No Apps or Drivers

Some accessories require enabling developer settings or installing apps. This adapter is different. It is truly plug and play. Specifically, connect the adapter to your phone’s USB-C port. Then plug your headphones into the 3.5mm jack and your charger into the USB-C port. Your phone immediately recognises both connections. For example, no settings to change, no drivers to install. Similarly, it works instantly on all compatible devices. As a result, you are up and running in seconds.

Compact and Portable – Fits in Your Pocket

This adapter is small and lightweight. Specifically, it is approximately the size of a USB flash drive. Therefore, you can keep it attached to your headphones or carry it in a small pocket. For instance, leave it on your wired earphones permanently. Similarly, keep it in your phone case or wallet. As a result, you always have it when you need it without adding bulk.

The short integrated cable (typically 10-20cm) prevents strain on your phone’s port. Consequently, the adapter is durable and long-lasting.

Real Use Cases for UK Users

Consider a commuter who travels by train for an hour each way. They want to watch downloaded Netflix shows on their phone, but the battery is low. Without this adapter, they have to choose between hearing the show (with wired headphones) or charging the phone. With this adapter, they plug in their charger and headphones simultaneously. Accordingly, they arrive at their destination with a fully charged phone and having enjoyed their show. As a result, the commute is productive and enjoyable.

Similarly, a remote worker takes long video calls on their phone. The call drains the battery quickly. They need to keep the phone charged while using wired headphones for privacy (or because their Bluetooth headset battery died). This adapter allows them to plug in the charger and headphones at the same time. For instance, they take a two-hour Zoom call while the phone stays at 100%. Consequently, they never have to scramble for a charger mid-call.

Furthermore, a gamer uses their phone for cloud gaming (Xbox Game Pass, GeForce Now). Bluetooth headphones introduce lag, ruining the experience. Wired headphones provide zero latency, but the phone battery drains quickly during gaming. This adapter allows them to use wired headphones while keeping the phone charged. For example, play for hours without interruption. As a result, they enjoy responsive, lag-free gaming without battery anxiety.

Likewise, a driver uses an older car with only an AUX input (no Bluetooth). They also need to charge their phone while using navigation. This adapter allows them to connect the AUX cable for music and plug in the charger simultaneously. Consequently, they have both entertainment and power on long drives.

Universal Compatibility – Works with Most USB-C Devices

This adapter works with a wide range of USB-C devices that support audio and charging over USB-C. Specifically:

Samsung Galaxy:

• S20, S21, S22, S23, S24 series

• Note 10, Note 20 series

• A series (A53, A54, A55, etc.)

• Z Fold and Z Flip series

Google Pixel:

• Pixel 2, 3, 4, 5, 6, 7, 8, 9 series

Other Android phones:

• OnePlus, Xiaomi, Huawei, Sony, Motorola (check USB-C audio support)

iPhone 15 and 16:

• Works with USB-C iPhones for audio and charging

Tablets and laptops:

• iPad Pro and iPad Air (USB-C models)

• MacBook, Dell XPS, HP Spectre (limited USB-C alt mode support)

For example, a Samsung S23 user can charge and listen simultaneously. Similarly, an iPhone 15 user can do the same. As a result, check your device’s USB-C compatibility before purchasing.

Important – Device Must Support USB-C Audio

Not every USB-C device supports audio output. For example, some older Android phones or tablets may only support charging and data, not audio. Similarly, the Nintendo Switch does not output audio via USB-C (it uses a proprietary dock). Therefore, ensure your smartphone, tablet, or laptop supports USB-C digital audio. As a result, you avoid buying an adapter that will not work with your device.

What About Microphone Support?

This adapter typically supports the microphone on headsets with a 3.5mm TRRS plug (three black rings). For example, a headset with an inline microphone for calls will work. The microphone signal passes through the adapter to your phone. Therefore, you can take calls hands-free. As a result, it is perfect for voice calls, video meetings, and gaming chat.

What’s in the Box?

This 2-in-1 USB-C to 3.5mm headphone and charging adapter typically includes:

• 1 x adapter unit (USB-C male input, 3.5mm female jack, USB-C female charging port)

• No cables or charger are included (use your own)

As a result, you receive the adapter only – use your existing USB-C charger and 3.5mm headphones.

Important – Listen While Traveling

For air travellers, this adapter is essential. Aeroplane entertainment systems often require wired headphones. Your phone also needs charging on a long flight. Many planes have USB-A ports for charging. Plug the adapter into your phone, connect your headphones, and plug a USB-A to USB-C cable into the charging port. Consequently, you watch movies with clear audio while keeping your phone powered.

Power Delivery (PD) vs Standard Charging

This adapter supports USB-C Power Delivery (PD) fast charging, which is the standard for modern phones. For best results, use a USB-C PD charger (18W or higher) and a USB-C to USB-C cable. Charging speeds up to 60W are supported, which is sufficient for phones, tablets, and even some laptops. As a result, you get the fastest possible charge while using audio.

This 2-in-1 USB-C to 3.5mm headphone and charging adapter is supplied by Sellertree, a UK-based online seller of practical mobile and audio essentials.

BULLET POINTS

✅ 2-in-1 functionality – listen to wired headphones and charge simultaneously
✅ Built-in DAC chip – high-quality, clear audio with no static or interference
✅ Fast charging support – up to 60W Power Delivery passthrough
✅ Plug and play – no drivers, apps, or settings required
✅ Compact and portable – small size, fits in pocket or on keychain
✅ Universal compatibility – works with Samsung, Google Pixel, iPhone 15/16, and more
✅ Microphone support – take calls with headsets that have an inline mic
✅ Perfect for travel, work calls, gaming, and long flights

SPECIFICATIONS TABLE ABOUT USB-C Headphone and Charging Adapter

HOW TO USE THIS USB-C Headphone and Charging Adapter

1. Plug the adapter’s USB-C male connector into your phone, tablet, or laptop.

2. Plug your 3.5mm wired headphones or earphones into the adapter’s audio jack.

3. Plug your USB-C charger (charger and cable not included) into the adapter’s USB-C port.

4. Your phone will charge and play audio simultaneously.

5. For headsets with a microphone, the mic should work automatically for calls.

6. To disconnect, unplug the adapter from your phone.

7. Store the adapter attached to your headphones for convenience.