Unsupported Browser
The web browser that you are currently using is no longer supported, and as such features of this website may not work as expected. We advise you to update to a currently supported browser (such as Chrome, Edge, or Firefox) to improve your security, speed, and overall experience.
We currently have this product in stock and available for dispatch.
Stock Location
| AV Distribution Hub: | 4 |
"Get it" shows the next available date that we will be able to deliver this item to you on, depending on the delivery option you select, and the stock availability of anything else that you add to your shopping basket.
5-year warranty & 30-day money-back guarantee included
If you decide your order isn't suitable for any reason you can return it - just let us know within 30 days of receiving it. Please keep hold of all the original packaging until you're sure you want to keep the order.
Eligibility for Money Back Guarantee
Important: For hygiene and software licensing reasons, some items are only eligible for our Money Back Guarantee if they are returned to us unused and sealed in the original packaging with all software still "unregistered." Details of exclusions are shown within the product descriptions. Products include:
- Monitors and Headphones
- Earplugs and Ear Protection
- Reeds and mouthpieces for woodwind and brass instruments
- Mouth and Lip-Care Products
- CDs, DVDs and Software
We can collect your return for a small fee, or you can send it back to us yourself. The collection fee can be found in the returns information on each product's page on AV.com.
In the unlikely event that any item in this order is faulty, damaged or incorrect on receipt, notify us within 14 days and we'll arrange a free collection.
When returning an order please ensure products are appropriately packaged and protected, to prevent them from getting damaged.
This table provides an overview of your statutory consumer rights, compared with our standard returns policy and optional extended money back guarantee and warranty.
| UK & Europe | EU Standard | AV.com Standard | AV.com Optional |
|---|---|---|---|
| Return Period | 14 days | 30 days | up to 180 days |
| Standard delivery charges refunded? | Yes | Yes | Yes, up to 30 days |
| Upgraded delivery charges refunded? | Standard costs only | Standard costs only | Standard costs only |
| Free collection on cancellation | No | No | Yes, up to 30 days |
| Free collection if defective, delivered damaged or incorrect item | Yes, within 14 days | Yes, within 14 days | Yes, within 30 days |
We are unable to accept returns of any custom made items designed to work together as a unique package and some items are only eligible for money back guarantee if they are returned to us unused and sealed in the original packaging. For full information on our returns policy, please refer to our returns and refunds information guide.
Pay with Klarna
Get more time to pay with Klarna
Split the cost into 3 equal monthly payments - interest free
Klarna's Pay in 3 / Pay in 30 days are unregulated credit agreements. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+. Subject to status. Late fees may apply. Ts&Cs apply.
Key Features
The FiiO ESTICK is a compact backup battery designed for KA17 and QX13 users who want longer listening without draining their phone. By supplying independent power directly to your portable DAC/amp, it reduces the load on your connected device, helping you preserve your phone’s battery while enjoying high-quality audio on the move.
Inside, a rechargeable 1100mAh lithium-ion battery delivers up to five hours of additional playtime, making it ideal for commuting, travel, or extended sessions away from a plug socket. The low ESR tantalum capacitors in the power circuit help provide a stable, low-ripple supply, which supports cleaner and more detailed sound from your DAC. With USB-C handling both charging and output, setup stays simple and tidy. And at just 30.8 grams, its slim design stacks neatly with your KA17 or QX13, keeping your portable setup light and easy to carry.
Product Ref: 366121
| Charging Chip | SW6003 |
|---|---|
| Output Circuit | AVX Low ESR Tantalum Capacitor |
| Battery | Rechargeable Lithium-Ion 1100 mAh |
| USB Connector | Type-C |
| Rated Input | DC 5 V ⎓ 1 A |
| Rated Output | DC 5 V ⎓ 0.6 A |
| Dimensions (W × H × D) | 64 × 23.5 × 13 mm |
| Weight | About 30.8 g |
| Product Code | FIIOESTICK-BLACK |
| EAN | 6953175791560 |
