1 5

Fosi Audio

Fosi Audio MD3 Portable Headphone DAC/Amp

Fosi Audio MD3 Portable Headphone DAC/Amp

  • Authorized Retailer
  • Free US Shipping $49+
  • 1-Year Warranty
  • 45-Day Returns
$160.99 USD
$160.99 USD
Sale Sold out
Shipping calculated at checkout.
Color

The Fosi Audio MD3 is a portable headphone DAC/amp built around the ES9039Q2M chip, with a magnetic body that lets it ride on the back of a phone and an LCD display for at-a-glance status.

This is the on-the-go option for listeners who want more than a phone's own output but do not want a brick strapped to their device. The display is genuinely useful for confirming sample rate and gain instead of guessing from LED colors.

  • ES9039Q2M DAC chip
  • Magnetic attachment, LCD display
  • Authorized retailer, 1-year warranty
  • Free US shipping over $49, 45-day returns
View full details
Good to know

Frequently asked questions

Is this unit genuine?

Yes. TonePier is an authorized retailer — every unit comes from the brand or its official distributor, carries a valid serial number and is covered by the full manufacturer warranty.

How long does shipping take?

SKUs stocked in our US warehouse ship within 1–2 business days. Items shipped direct from our China hub typically arrive in 8–15 days with full tracking. The product page tells you which applies before you order.

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.