The EPZ S350T Pro is a pair of TWS earbuds with a hybrid driver in each bud, a 6 mm titanium-plated dynamic plus a Knowles 30095 balanced armature, running Qualcomm's QCC3040 with Bluetooth 5.2 and aptX Adaptive. Rated IPX7, it suits gym sessions, rainy runs and commutes.
Who the EPZ S350T Pro is for
Gym and wet-weather use: EPZ rates the IPX7 build for submersion to 1 m for 30 minutes, so sweat and rain are covered, though it advises against swimming.
Android phones with aptX Adaptive: The QCC3040 chip handles aptX Adaptive, with aptX, AAC and SBC as fallbacks for other phones.
Wired-IEM owners: A dynamic + balanced-armature pairing in a 3D-printed resin shell shaped like a custom IEM makes it a knockabout pair, so your good IEMs stay home and dry.
Wireless-charging households: The case tops up on a Qi pad as well as over USB-C.
Skip it if: you want active noise cancelling: EPZ says the S350T Pro has none and relies on passive isolation, with cVc 8.0 used only to clean up call audio.
Genuine EPZ stock. Free shipping on every order, 45-day returns, 1-year warranty.
EPZ S350T Pro vs similar options
vs Soundcore Liberty 4 NC: Liberty 4 NC adds active noise cancelling around an 11 mm dynamic driver; the S350T Pro has no ANC but pairs a 6 mm dynamic with a Knowles BA. Pick by whether ANC matters.
vs Soundcore Liberty 4: Liberty 4 runs a coaxial 9.2 mm + 6 mm dual-dynamic driver; the S350T Pro adds a Knowles balanced armature to its 6 mm dynamic. Choose the EPZ for BA-driven treble.
6 mm titanium-plated dynamic + Knowles 30095 BA (hybrid)
Frequency response
20 Hz – 20 kHz
Good to know
Buying from TonePier
Is this unit genuine?
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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