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header-product Stereo portable speaker Ultimate Ears WONDERBOOM 4 Grey, Yellow
119.49 €

Stereo portable speaker Ultimate Ears WONDERBOOM 4 Grey, Yellow

Stereo portable speaker Ultimate Ears WONDERBOOM 4 984-001897 Photo 1
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Stereo portable speaker Ultimate Ears WONDERBOOM 4 Grey, Yellow

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Short description

The Ultimate Ears WONDERBOOM 4 is a compact stereo portable speaker featuring a unique cylindrical design in Grey and Yellow. It boasts a passive radiator size of 46.1 x 65.2 mm and delivers a maximum sound pressure level of 87 dB. With wireless connectivity and a Bluetooth range of up to 40 meters, it is perfect for universal use, making it an ideal companion for outdoor adventures or indoor gatherings.
Available for order: 23 pcs.
Warranty: 2 Years
SKU: 11346819
delivery
to the Customer Service Center at Kengaraga 2b, Riga
15.07.2026 {{selectedOffer.officeDeliveryString}}
free
Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
15.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
20.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.56 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa
20.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Payment Methods:
Bank transfer
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Product information

Description

The Ultimate Ears WONDERBOOM 4 is a compact, ultraportable Bluetooth stereo speaker in grey and yellow that delivers bigger, bass-forward sound from a single small enclosure. It features a passive radiator (46.1 x 65.2 mm), up to 14 hours of playtime and a maximum sound pressure level of 87 dB. The speaker is IP67 rated for dust and water resistance, will float, and is built to withstand 5-foot drops. Wireless range reaches up to 40 metres and it supports quick one-tap Bluetooth pairing with Android devices. Two WONDERBOOM 4 units can be paired for doubled output or configured as a true left/right stereo pair. (Not compatible with WONDERBOOM 1, 2, BOOM, MEGABOOM or HYPERBOOM.)

Advantages

WONDERBOOM 4 combines compact size with pronounced bass and clear vocals thanks to a dedicated Podcast Mode and an Outdoor Boost for open-air listening. The speaker offers long battery life of up to 14 hours, robust IP67 protection so it can be used near water or in dusty conditions, and durable construction rated to survive 5-foot drops. Environmental design includes at least 31% certified post-consumer recycled plastic by weight in plastic parts.

Suitable for

  • Outdoor activities: beach, poolside, hiking
  • Home use: kitchen, shower, small gatherings
  • Portable listening: travel, picnics, commuting
  • Podcast and spoken-word playback

Key specifications

  • Model: Ultimate Ears WONDERBOOM 4 (Grey, Yellow)
  • Speaker configuration: 1 speaker with passive radiator (46.1 x 65.2 mm)
  • Max sound pressure level: 87 dB
  • Battery life: up to 14 hours
  • Wireless connectivity: Bluetooth, one-tap pairing with Android
  • Wireless range: up to 40 m
  • Durability: IP67 (dust and water resistant), floats, drop-tested to 5 ft
  • Compatibility note: does not connect with WONDERBOOM 1, 2, BOOM, MEGABOOM or HYPERBOOM
  • Weight: 0.42 kg
  • Material: includes minimum 31% certified post-consumer recycled plastic by weight in plastic parts

How to use

Charge the speaker fully using the supplied cable, then enable Bluetooth on your device and tap once to pair quickly with compatible Android phones. Press the single button to play and control pairing; to link two WONDERBOOM 4 speakers press the pairing control once to double the output and press again to activate left/right stereo mode. Use the Outdoor Boost and Podcast Mode from the device controls or companion app where available to optimise sound for outside listening or clearer vocals. Place the speaker on a stable surface and avoid blocking the passive radiator for best audio performance.

Usage recommendations

For longer outdoor sessions, keep the speaker dry when not in use and avoid prolonged submersion despite its buoyancy; to preserve battery life, reduce volume when full power is not needed. Use paired speakers for wider stereo coverage at gatherings.

Specifications

Number of speakers:
1
Weight:
0.42 kg
Product colour:
Grey, Yellow
All features

Design

Product colour:
Grey, Yellow
Volume control:
Buttons
Product design:
Cylinder
On/off switch:
Yes
Hook:
Yes
Product type:
Stereo portable speaker

Packaging content

Cables included:
USB Type-C
Quick start guide:
Yes

Ports & interfaces

Connectivity technology:
Wireless
USB connector type:
USB Type-C
Bluetooth:
Yes
AUX in:
No
Bluetooth range:
40 m
USB connectivity:
Yes
USB charging port:
Yes
3.5 mm connector:
No

Performance

Recommended usage:
Universal

Battery

Battery technology:
Lithium-Ion (Li-Ion)

Loudspeakers

Number of drivers:
4
Number of speakers:
1
Number of passive radiators:
2
Passive radiator size (W x D):
46.1 x 65.2

Power

Battery type:
Built-in battery
Battery life (max):
14 h

Features

LED indicators:
Bluetooth
Wi-Fi:
No
Bluetooth profiles:
A2DP

Weight & dimensions

Weight:
0.42 kg
Height:
104 mm
Width:
95.3 mm
Depth:
95.3 mm

Audio

Sound pressure level (max):
87 dB

Description

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Customer reviews

Customer questions

FAQ

How much does the Stereo portable speaker Ultimate Ears WONDERBOOM 4 984-001897 cost, and is it available for purchase?

The price is 119.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Logitech products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Logitech service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: number of speakers, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.