Kiwi Ears Spark
Sport OWS Stereo Bluetooth Earphones
ForCritical listening
Recommended products
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Optional pairings. A cable and ear tips are already in the box.
Overview
The details behind Kiwi Ears Spark.
Sport Open Wearable Stereo (OWS) Bluetooth Earphones
Experience reliable performance with these earphones designed for active lifestyles. The open, wearable design ensures a comfortable, secure fit for everyday use and exercise. Enjoy clear stereo sound and stable Bluetooth connectivity for music and calls.
Clear Call Support
Enjoy reliable, clear calls with Kiwi Ears Spark. With dual-ear call functionality, you can easily manage conversations while on the move.
Effective ENC Noise Cancellation
The single-microphone ENC technology minimizes background noise for improved call clarity, making it easier to focus on your conversation even in busy settings.
Stereo Music Playback
Experience wireless stereo sound with A2DP support. These earbuds deliver balanced audio with noticeable bass, perfect for everyday music listening.
Intuitive Voice Control
Stay connected with simple voice prompts and Siri integration. The earbuds also support AAC and SBC audio decoding, ensuring compatibility with various devices, while displaying your iPhone’s battery status.
Smart Charging and Durability
The charging case features a three-color LED display to show battery levels at a glance. With an IP45 rating, Kiwi Ears Spark offers practical protection against dust, moisture, and sweat for everyday use.
Technical details
- Suggested genres
- Pop, Rock & Metal, Jazz
- Chipset
- QCC3040
- Bluetooth Version
- V5.2
- Bluetooth Profiles
- a2dp 1.3.2, avctp 1.4, avdtp 1.3, avrcp 1.6.2, hfp 1.8, spp 1.2, hid 1.1.1
- Supported Audio Codecs
- SBC, AAC, APTX
- Charging Case Dimensions
- 82.58 × 65.49 × 26.3 mm
- Earbud Dimensions
- 46.05 × 38.63 × 17.29 mm
- Earbud Weight
- 8.7 g
- Charging Case Weight
- 85 g
- Transmission Range
- 12 m
- Music Playback Time
- Approx. 7 hours (at 70% volume)
- Talk Time
- Approx. 5 hours (at max volume)
- Standby Time (Earbuds)
- Approx. 240 hours
- Earbud Battery Capacity
- 60 mAh
- Charging Case Battery Capacity
- 1000 mAh
- Number of Earbud Recharges from Case
- 2–3 times
- Pairing Name
- Kiwi Ears Spark
- Microphone Type
- 2718 Silicon Microphone
- Directivity
- Omnidirectional
- Sensitivity (0dB = 1V/Pa at 1kHz)
- -38 ± 1 dB
- T.H.D. (94 dB SPL @ 1kHz, VDD = 2.2V)
- ≤0.15%
- Frequency Range
- 100 Hz – 10 kHz
- Operating Voltage
- 1.6 – 3.6 V
- Current Consumption
- ≤100 µA
- Signal-to-Noise Ratio (S/N)
- 62 dB
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Expert reviews
Watch the review. Read the full story.
-
ZeDen
ZeDen teste les ecouteurs Kiwi Ears Spark
The conclusion praises a secure, comfortable fit and a balanced sound with satisfying bass. The reviewer would like a battery-level display on the charging case.
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Gadgets Middle East
Kiwi Ears Spark Review
The review highlights vocal clarity, an open-ear fit and useful call microphones. Bass is light, fit affects sound and wind can be troublesome.
Customer reviews
What listeners say about sound, fit and everyday use.
I consider myself a bit of an audiophile, but I don’t particularly enjoy listening to music through headphones, especially closed, sealed ones. With them, the soundstage feels almost nonexistent — the music plays as if inside your head, creating a pressuring effect.
Still, I was looking for a solution for casual music listening while working outside the room where my Hi‑Fi system is located. At first, I used Bluetooth speakers like the UE Megaboom or JBL Xtreme 2, always in pairs via TWS, to achieve a more spacious and filling sound. They worked well outdoors, but indoors they were inconvenient — especially when moving between rooms, since I had to carry the speakers around. Small rooms also introduced the problem of standing waves, where certain frequencies (particularly low ones) resonated with the room and became boomy or muddy.
Eventually, I grew tired of all this and decided to look for wireless earphones that could replace Bluetooth speakers — delivering a spacious, non‑fatiguing sound with noticeable bass, while remaining compact, comfortable, not sealing the ear canal, and so light that they feel almost like wearing nothing at all.
And I found them: Kiwi Ears Spark — they meet all these requirements!
I really like their design, especially the case. It feels great in the hand, and opening the lid is like opening a seashell with two pearls inside — a very pleasant sensation. However the window in the case lid could ideally be covered with transparent glass to prevent dust or sand from entering… but perhaps this open window is exactly what gives the case its seashell‑and‑pearls aesthetic.
As for the sound and tonal balance, it is quite good considering the type of headphones, and the aptX codec brings the detail closer to wired performance. A word of caution: these are not designed for dense, bass‑heavy sound. They are more suited for background listening while you are busy with other tasks. Indeed, the sound is light and non‑intrusive, never fatiguing, yet bass is still audible down to 30 Hz. Of course, the frequency response drops sharply at 30 Hz, but you can still hear a hint of it — something Bluetooth speakers often fail to deliver. And for news and podcasts, these earbuds are simply perfect.
And I noticed that the factory tuning of the tonal balance is better suited for podcasts, while the musical potential is not fully realized in my opinion. I attached a screenshot of the frequency response curve I measured myself using the Spectroid app on my smartphone. A significant peak around 6–7 kHz makes the headphones a bit piercing at high volumes. When tuning audio systems, I always strive to make the frequency response as flat as possible. So here, too, I tried to smooth it out using the Toneboosters parametric EQ inside the USB Audio Player PRO app, which I always use for music playback.
I also attached a screenshot of my final EQ settings and the resulting frequency response. If you use this player, you can apply the same settings and compare them with the stock sound. Personally, I feel my correction improved the sound: I reduced the shoutiness, added some bass around 40–50 Hz, cut the sub‑bass below 30 Hz (which these earbuds cannot reproduce anyway), and lifted the treble. The result is a more even perception of the entire frequency spectrum. The ear is no longer irritated at high volumes by the boosted 6–7 kHz region, so you can turn the music up louder and immerse yourself more deeply in the performance.
Note:
As you can see in my EQ settings, I lowered the overall Output Level by –3.0 dB. Without this, in some loud tracks at peak moments, the player’s engine may clip due to boosted frequencies in EQ. Lowering the output level by –3 dB also reduces the maximum volume of the headphones, but for home listening this reduction will still provide enough volume.
Feels comfortable and secure but the speaker is off alignment with the ear canal really impacting sound. There is no way to adjust it to better calibrate to your ear. I have average male ear size and this makes me feel like I need child ears for it to fit well.
Hi there,
Thank you very much for sharing your experience.
Please understand that the fit of the earphones may vary from person to person. Due to differences in the shape and size of individual ear canals, the alignment of the drivers with the ear canal may vary, which can affect the sound experience. We understand that this may cause some inconvenience and sincerely apologize for any impact on your experience.
Thank you for your understanding!
The best in-ear headphones I've seen. The sound is simply incredible, very comfortable. At times you can forget you're wearing them.
Your order
Which countries do you ship to?
We are generally able to ship to most countries via Express Shipping, and many countries via Standard Shipping. You may clarify this with our team to check whether Standard Shipping is available to your country.
We cannot ship to addresses that are "PO boxes or APO/FPO".
*Note: Generally, we can only do Selected Shipping to India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.
This may be subjected to changes due to unpredictable issues such as Covid, war, and etc.
How much does shipping cost?
We have two shipping methods - Standard Shipping and Express Shipping.
Standard Shipping is free for most countries, while Express Shipping is 15-35USD depending on your country. If your order is over 270USD, Express Shipping is free*.
*This applies for most countries. However, large items such as headphones and desktop DAC/AMPs (e.g. HarmonicDyne G200, MUSICIAN MDP-2, and etc.) are excluded.
Shipping fees exclude import taxes or processing fees that may be applicable for your country. Linsoul is not responsible for such fees. Should you refuse to pay the tax/customs fees, shipping fees will still be deducted from the amount paid for thetwo-way freightcharges. The cost of the freight charges may be more than the amount reflected on your order due to tax and other miscellaneous fees.
Some parcels claimed to be “returned to the seller” may be destroyed by the post office or customs officers when buyers refuse to accept their parcels or fail to pay for their taxes.No refundwill be processed for such cases.Standard Shipping via YunExpress is a tax-inclusive option for some countries. However, Linsoul will not be responsible for additional administrative or handling fees charged by your local courier company or customs. Please kindly check this with your local customs.For certain remote areas, there may be additional charges via Express Shipping. We will contact you if there is a need to make additional payments. Please contact us before placing an order, should you have any queries regarding shipping.
How long does it take to receive the order after it is placed?
For in-stock products, your order will be shipped within 3 working days. You may check with our staff regarding the in-stock status of any products.
Customized items will take a longer time. Please contact our staff for more information.
On normal non-sale days, once your parcel has been shipped out:
- For Standard Shipping, it takes about 2-4 weeks for items to be delivered after shipping out. For some countries, it might take up to 2-3 months, depending on your country, its customs and other factors.* The duration for transit is something beyond our control. Linsoul will not be making refunds for such cases. Please consider an upgrade to Express Shipping or keep the waiting time in mind.
- For Express Shipping, it takes about 3-7 days for items to be delivered after shipping out.
*Note: Timings might be affected due to festive seasons or other unforeseen circumstances
What happens if the parcel has been shipped but not delivered?
First, kindly contact your local courier using the local tracking number.
If your parcel were to be in transit for at least 3 months, it may have been lost in transit.
For orders below $50USD, you may either opt for a one-time reshipment of parcel OR a full refund of the amount paid in cash via PayPal/Credit/Debit card.
For orders above $50USD, we will only process a 50% refund of your order paid in cash via PayPal/Credit/Debit card. Should there be any concern about Standard Shipping, you are encouraged to opt for DHL Express Shipping instead.
Customers are to bear the consequences and fees incurred, if the parcel was undelivered due to any of the following situation:
- Wrong address or phone number provided by recipient
- Recipient was uncontactable when courier company contacted
- Refusal to sign for the package by recipient
- Lost or damaged parcel because recipient opted for “no-signature delivery”
- Refusal to pay for the local tax/processing fee by recipient
- Refusal to provide supporting documents for custom clearance by recipient
Who will pay for the import tax/custom fees
Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.
Should you be unwilling to pay for the fees and reject the delivery of the parcel, you will still have to pay for the shipping cost. Linsoul will only refund the amount of your order after deducting the two-way shipping fees incurred.
What shipping companies do you use?
We collaborate with these courier companies:
- Standard Shipping: 4PX, UBI, NinjaVan, and Yun Express
- Express Shipping: DHL Express, FedEx and SF Express
How do I get help for my order?
Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order.
As our Support Team might not be available during non-working days and weekends, please place your order wisely.
Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (Support@Linsoul.com) or website chat. We will help you with the changes if that could be done.
In general, upon receiving your parcel, please confirm the contents of the package and ensure that the package is in good condition before signing for it. All customers are strongly advised to take an unboxing video of their parcel and packaging when opening their parcels and products.
For faulty/missing items, please send an email to support@Linsoul.com for after-sale services. The following details are required.
- Send an email to support@Linsoul.com with an appropriate Subject Title
- Provide your order number and state the issue clearly
- Attach photos and videos to show that your product is faulty/missing. Shipping details on the parcel packaging have to be clearly visible.
If the photos/videos provided are insufficient to prove the stated issue, we will enquire more. Once the issue has been confirmed, we will arrange for a replacement, partial refund or a full refund (where applicable). For incorrect products, Linsoul reserves all rights in deciding whether you need to return the incorrect item or not. Please kindly contact us via email first. Our team aims to review your email within 3 working days.
For other queries, the fastest way to contact us is via our website or Discord
Linsoul Audio will not be responsible for parcels that have been damaged during the transit process.
Do I get tracking details for my order?
After placing an order, you will receive the order confirmation email. After your order has been shipped out, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.
For more than 1 orders placed under the same account and shipping address, Linsoul will automatically combine the orders and ship them out via one tracking number. Should you have special requests to have the orders shipped separately, please kindly contact us via Discord or our website's chat. We will do our best to help.
How do I cancel my order?
Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order. Orders that have been shipped cannot be cancelled and modified.
As our Support Team may not be available during non-working days and weekends, please place your order wisely as support cannot be guaranteed for such requests.
Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (support@Linsoul.com) or website chat. We will help you with the changes if that could be done.
Can I return an opened item?
Request a return within 30 days of delivery while the product is factory-sealed. Contact support for instructions before returning anything.
Where should I send the product for the return process?
To initiate the return shipment, kindly send an email to support@Linsoul.com within 30 days upon receiving the sealed product(s). The RMA form and details will be provided to you via email.
When must the product be returned after receiving the RMA form and details?
After receiving the return instructions from us via email, kindly arrange the return shipment of the parcel within 5 working days, and update us with the tracking link via email again. Failure to do so will result in a cancellation of the return process.
When will I receive my refund after returning the product?
In most cases, after receiving and inspecting the returned product, your refund will be processed within 5 business days. Refunds may incur a currency exchange loss or transaction fee, depending on your source of payment (e.g. Bank or PayPal). Linsoul will not be responsible for such fees.
What warranty applies?
Most products come with a 1-year warranty; cables and accessories have shorter or separate terms.
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