LETSHUOER S12 PRO: a planar magnetic IEM that pairs a 14.8mm driver with CNC-machined aluminum shells for a fast, detailed sound. Its silver-plated monocrystalline copper cable ships with swappable 2.5mm, 3.5mm and 4.4mm plugs, so planar fans with balanced sources can plug in straight out of the box.
Who the LETSHUOER S12 PRO is for
Balanced-source owners: The 2.5mm and 4.4mm plugs come in the box alongside 3.5mm, so there's no extra cable to buy.
Detail-focused planar fans: The 14.8mm planar driver gives the fast, detailed presentation planar fans expect, with energetic treble.
Listeners with a powered source: A source with some power on tap, like a balanced dongle, keeps the bass tight.
Treble-sensitive tip rollers: Foam or narrow-bore tips tame the treble considerably, and memory foam tips (3 sizes) are in the box.
Skip it if: you want a warm, relaxed tuning without tip-rolling — the S12 PRO's treble is energetic.
LETSHUOER S12 PRO key specs
Driver: 14.8 mm planar magnetic
Impedance: 16 Ω ± 1 Ω
Sensitivity: 102 dB
Frequency response: 20 Hz – 20 kHz
Connector: 0.78 mm 2-pin
Cable: Silver-plated monocrystalline copper; swappable 2.5 mm / 3.5 mm / 4.4 mm plugs
Shells: CNC-machined aluminum
Ear tips: Memory foam, standard and transparent (3 sizes each)
Case: Faux leather carrying case
Genuine LETSHUOER stock. Free shipping on every order, 45-day returns.
LETSHUOER S12 PRO vs similar options
vs LETSHUOER S08: LETSHUOER's S08 uses a fourth-generation 13mm planar tuned warmer and smoother, with 3.5mm and 4.4mm plugs; choose the S12 PRO for its 14.8mm driver, energetic treble and extra 2.5mm plug.
vs 7Hz Timeless 2: 7Hz's 14.5mm planar pairs a dual-sided coated diaphragm with dual N52 magnets and is tuned for even treble; pick the S12 PRO for energetic treble and three plugs in the box.
vs SIMGOT SuperMix 4: SIMGOT's quadbrid mixes dynamic, BA, planar and PZT drivers in a lightweight resin shell at 7.2Ω; choose the S12 PRO for a single 14.8mm planar in CNC-machined aluminum shells.
0.78 mm 2-pin; swappable 2.5 mm / 3.5 mm / 4.4 mm plugs
What's in the box
LETSHUOER S12 Pro earphones
Silver-plated monocrystalline copper cable
Swappable 2.5 mm / 3.5 mm / 4.4 mm plugs
Memory foam ear tips (3 sizes)
Standard ear tips (3 sizes)
Transparent ear tips (3 sizes)
Faux leather carrying case
User manual and QC certificate
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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