# WIRED chains 149 of Ikea’s $10 Kallsup speakers into a wall of sound to test extreme Bluetooth limits

Acoustic stress testing in London proves the budget Swedish cubes can form a synchronized 149-unit monolith from a single smartphone.

- Canonical: https://reviewblip.com/news/wired-chains-149-of-ikeas-10-kallsup-speakers-into-a-wall-of-sound-to-test-extreme-bluetooth-limits/
- Published: 2026-10-27T00:20:58.502Z
- Updated: 2026-10-27T00:20:58.502Z
- Author: ReviewBlip
- Category: Consumer Audio & Bluetooth Architecture
- Type: News

![Stack of 149 colorful Ikea Kallsup mini Bluetooth speakers arranged into an acoustic wall of sound inside test lab](https://reviewblip.com/editorial-images/3a78fbe5957bb5d2a675a9fac32187277a01661dd6503b904fcbba9f5cc0f5a0)

Image credit: WIRED / Jeremy White

When Swedish retail giant Ikea introduced its diminutive $10 Kallsup Bluetooth speaker earlier this year, marketing materials included an audacious technical specification: the claim that consumers could chain up to 100 of the 2.75-inch acoustic cubes together into a single synchronized playback network. To verify whether the budget hardware could survive such architectural stress, audio engineers at WIRED assembled and tested an unprecedented 149-speaker monolith in their London testing lab.

Ikea headquarters in Älmhult provided 150 production units for the independent evaluation, noting that even internal product validation teams had never attempted to verify playback beyond 100 units. Following the loss of one unit damaged during transit, engineers paired a single primary Kallsup to an Apple iPhone 16 Pro via standard Bluetooth and initiated the proprietary multi-speaker daisy-chaining protocol across the remaining 149 speakers.

The setup procedure proved remarkably friction-free, taking approximately 30 minutes. By holding the physical Play button on secondary units until an audible chime signaled connection, each Kallsup joined the broadcast array without software companion apps or Wi-Fi network bridges. Remarkably, all 149 speakers maintained uninterrupted acoustic synchronization, producing an immersive sonic wall with negligible latency drift or audio artifacting between individual cubes.

While individual Kallsup units deliver modest low-frequency response consistent with their ultra-budget $10 price point, the aggregated 149-unit matrix generated substantial acoustic volume and uniform dispersion. The successful stress test demonstrates the unexpected robustness of modern consumer Bluetooth mesh protocols, showing that clever broadcast architecture can turn entry-level disposable hardware into an impressively cohesive acoustic array.

## Sources
- [\[src-wired-ikea-kallsup\] We Linked 150 of Ikea’s $10 Speakers to Make a Wall of Sound](https://www.wired.com/story/we-linked-150-ikea-speakers-to-make-a-wall-of-sound/)