The TRUTHEAR KEYX is an L-shaped USB-C DAC/amp dongle with a Cirrus Logic CS43131 chip and a 3.5mm jack built into the body, with mic support and DSD playback at about 4g. It suits phone, tablet and laptop users who want a cable-free way to run wired IEMs from a USB-C port.
Who the TRUTHEAR KEYX is for
Phones without a headphone jack: It plugs straight into a USB-C port and feeds a 3.5mm output from a Cirrus Logic CS43131 DAC chip.
Calls and game chat: The 3.5mm jack supports in-line microphones, so headset-style IEM cables keep working for calls and voice chat.
Landscape gaming: The L-shaped body has no cable between the USB-C plug and the jack, and TRUTHEAR says its length works with many protective cases and suits landscape use.
Everyday carry: At about 4g with a built-in keyring loop, it can stay on your keys between listening sessions.
Skip it if: you need a 4.4mm balanced output or a Lightning connection; the KEYX has a USB-C plug and a single 3.5mm jack.
TRUTHEAR KEYX key specs
DAC chip: Cirrus Logic CS43131
Input: USB-C plug on an L-shaped body, no cable
Output: 3.5mm single-ended jack built into the body
Microphone: Supported through the 3.5mm jack
DSD: Supported
DSP/EQ: Works with online DSP and EQ tools, per TRUTHEAR
Power: Bus-powered from the USB-C source; no battery
Weight: About 4g
Carry: Built-in keyring attachment point
Color: Black
Genuine TRUTHEAR stock. Free shipping on every order, 45-day returns.
TRUTHEAR KEYX vs similar options
vs Shanling UA Mini: Uses the same Cirrus Logic CS43131 chip in a compact dongle offered in red or blue; pick the KEYX for its cable-free L-shaped USB-C body, mic support and keyring loop.
vs iBasso Jr. Macaron: Pairs the same CS43131 chip with a separate USB-C to USB-C cable and four colors; pick the KEYX for a plug-in L-shaped body with mic support that weighs about 4g.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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