FiiO FF3S Dual-Cavity Earphones

In stock

The all-new FF3S comes with a build quality upgrade!

The new FiiO FF3S adopts aluminum alloy as the earphone cover, with matte surface treatment; compared with its predecessor, the whole visually presents a deep and delicate high-level texture; in addition, the aluminum alloy material gives the FF3S a lighter wearing experience, with the weight of a single unit of only about 3.9g, which is more sensitive to the human ear, the subtle change in weight can significantly reduce the pressure on the ear canal, FiiO FF3S compared to FF3, the weight of a single unit is reduced by about 52%, which makes it easier for long-time listening. Compared with FF3, FiiO FF3S is about 52% lighter than FF3, so you can listen to it for a long time.

FiiO FF3S is equipped with a beryllium-plated dome + PU suspension diaphragm moving coil combination, beryllium-plated diaphragm has high rigidity, lightweight features, reduce diaphragm split vibration, reduce non-linear distortion; and the choice of PU material as the suspension edge, its high internal resistance characteristics make the sound of the low frequency more bouncy and tough, the mid-frequency part of the human voice is transparent, the high frequency is more translucent.


  • Impedance: 45Ω.
  • Frequency response range: 20Hz-20kHz.
  • Sensitivity: 105dB.
  • Max input power: 100mW.
  • Termination plugs: 3.5mm/4.4mm.
  • Earphone pins: 0.78mm x2
  • Cable length: 120cm approximately.
  • Weight: 3.9grams.

Shipping Options

Shipping Options Cost Shipping Time
Priority Air Mail Budget shipping cost 10 – 15 days
Express (DHL/UPS/FedEx) Base on location 5 - 10 days

Please refer to shipping estimate when you confirm your order.

You may choose standard shipping or express shipping depending on the items in your order and your location. As your orders may be handed over to local carriers for the final leg of delivery, tracking may not be available every step of the way.

Shipping address

Please make sure that you have provided the correct and current address for shipping and delivery. You may use P.O. boxes as your shipping address. But certain items can only be delivered to physical addresses. Large products, valuables, perishables, products with age-based restrictions, or items shipped via private carriers may require a physical mailing address or signature confirmation to be successfully delivered. Items cannot be delivered to security-restricted areas such as military bases.

Shipping time and cost

1) After an order has been successfully paid and confirmed, you will see the estimated delivery time and cost for shipping on your order confirmation page. You will also receive an order confirmation message that will outline the estimated processing time for your order.

2) The warehouse may take 1-3 days to process your order. You will receive a message once your order has been shipped.

3) You'll receive a shipment notification message that will provide you with the estimated delivery time for each package once it is shipped. We will also provide you the tracking number when it is ready. You can view this estimated delivery time under each package in your order history at the same time.

4) In most cases, your order will be delivered within the estimated time of delivery. However, the actual delivery date may be affected by flight arrangements, weather conditions, and other external factors. Please refer to the tracking information for the most up to date delivery date.

Issues regarding delivery

If your package has not been delivered or your tracking information shows that your package has been delivered but you have not received it, please contact our customer service immediately and within 30 days of the order date.


Worldwide Shipping
2-Year Warranty
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