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Aune

Aune AC45 Clip-On Headphones — Open-Back, 40mm Dynamic, 3.5mm & 4.4mm Plugs

Aune AC45 Clip-On Headphones — Open-Back, 40mm Dynamic, 3.5mm & 4.4mm Plugs
  • Genuine & Brand-New
  • Free Shipping · Ships from China
  • 1-Year Warranty
  • 45-Day Returns
Regular price $153.99 USD
Regular price Sale price $153.99 USD
Shipping calculated at checkout.
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The Aune AC45 is an open-back clip-on headphone with a 40mm dynamic driver per side, rated at 18Ω and 112dB, on a semi-memory alloy ear hook with a cable that swaps between 3.5mm and 4.4mm plugs. It suits listeners who want open, headband-free sound from a phone, dongle or DAP.

Who the Aune AC45 is for

  • Long listening sessions: Aune's semi-memory alloy ear hook is shaped to spread pressure around the ear, and each earpiece weighs 35g.
  • Phones, dongles and DAPs: It is rated at 18Ω and 112dB, and the cable takes either the 3.5mm single-ended or the 4.4mm balanced plug, both included.
  • Open sound without a headband: The open-back clip-on design lets sound spread naturally; Aune says this gives a more transparent, spacious soundstage than in-ear or closed-back headphones.
  • Vocals, pop and acoustic music: Aune describes the AC45 tuning as warm and vibrant, aimed at vocals, light music, pop and acoustic performances.
  • Skip it if: you need isolation, privacy or a microphone — the open-back design lets sound in and out, and the AC45 has no mic, so it is not a gaming or call headset.

Aune AC45 key specs

  • Type: Open-back clip-on headphones with ear hooks
  • Driver: 40mm dynamic, W-shaped bio-fiber composite diaphragm
  • Impedance: 18Ω
  • Sensitivity: 112dB at 1kHz
  • Frequency range: 15Hz–40kHz
  • THD: Under 0.3% at 1kHz
  • Weight: 35g per earpiece
  • Cable: 1.25m oxygen-free copper Litz cable with interchangeable 3.5mm single-ended and 4.4mm balanced plugs
  • In the box: Cable, 3.5mm plug, 4.4mm plug, quick start guide, portable pouch
  • Color: Black

Genuine Aune stock. Free shipping on every order, 45-day returns.

Aune AC45 vs similar options

  • vs Aune AR5000: Adds a full-size open-back build with a 50mm MLD dynamic driver and a suspension headband; pick the AC45 for a headband-free clip-on fit at 35g per side.
  • vs HIFIMAN HE400se: Adds planar magnetic drivers in an open-back design, with a dedicated headphone amp recommended; pick the AC45 for an 18Ω clip-on design with both 3.5mm and 4.4mm plugs in the box.
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Specifications

Driver 40mm dynamic, W-shaped bio-fiber composite diaphragm
Impedance 18Ω
Sensitivity 112dB at 1kHz
Frequency response 15Hz–40kHz
Connector Cable with interchangeable 3.5mm single-ended and 4.4mm balanced plugs
Weight 35g per earpiece

What's in the box

  • Aune AC45 headphones
  • 1.25m OFC cable
  • 3.5mm plug
  • 4.4mm plug
  • Quick start guide
  • Portable pouch
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.