KEF Muo Portable Bluetooth Hi-Fi Speaker IP67 Rated
The KEF Muo is a premium IP67-rated Portable Bluetooth Hi-Fi Speaker delivering 43Hz–20kHz frequency response, 24-hour battery life and aptX Adaptive Bluetooth 5.4 — combining a dedicated racetrack driver, dome tweeter and Music Integrity Engine DSP in a designer aluminium enclosure built for any adventure.
Life doesn't stand still, and your music shouldn't either. The KEF Muo distils six decades of acoustic engineering expertise into a compact, beautifully crafted portable speaker that delivers KEF's signature HiFi sound — stunning clarity, detailed midrange and powerful bass — in an all-day design that is ready for any adventure. Designed by visionary designer Ross Lovegrove, whose sculptural form draws inspiration from KEF's legendary Muon HiFi speakers, the Muo is crafted from premium aluminium and available in five vibrant finishes with matching tone-on-tone carrying straps — please select your preferred colour before adding to basket.
Bass That Punches Above Its Weight
A highly efficient dedicated racetrack driver — measuring 58 x 117mm and supported by KEF's P-Flex Surround technology, adapted from flagship subwoofer development — works in synergy with a 20mm dome tweeter to deliver a sound that defies the Muo's compact size. The P-Flex Surround allows for precise cone movement, delivering impressively deep, controlled and detailed bass extending down to 43Hz, whilst the dedicated dome tweeter brings a new level of high-frequency sophistication to portable audio — revealing sharp, brilliant high tones and every detail in vocals and instruments.
Music Integrity Engine
KEF's proprietary Music Integrity Engine (MIE) sits at the heart of the Muo's DSP platform — a suite of bespoke algorithms specially tuned with technology derived from the flagship LS60 Wireless speakers, enhancing overall sonic performance for remarkable accuracy and integrity. The result is a portable speaker that sounds as cohesive, natural and musically engaging as a much larger system.
All-Day Battery & Fast Charging
The Muo powers through up to 24 hours of playback at moderate volume levels, carrying you from morning to night and beyond without needing to find a charger. When time is short, a 15-minute quick charge provides up to 3 hours of listening — ensuring the Muo is always ready when you are. Full charge is achieved in approximately 2 hours via USB-C.
Versatile Connectivity
Bluetooth 5.4 with aptX Adaptive (up to 48kHz/24-bit), SBC and AAC codec support delivers high-resolution wireless audio from compatible devices. Google Fast Pair and Microsoft Swift Pair enable single-tap connection from compatible Android and Windows devices, and a USB-C port provides a straightforward wired connection to laptops for quick and easy setup at up to 48kHz/16-bit resolution. The built-in speakerphone features advanced noise and echo cancellation for crystal-clear hands-free calls. For larger sound, two Muo speakers can be wirelessly paired for True Wireless Stereo with dedicated left and right channels, and multiple Muo speakers can be linked via Auracast to play the same music in perfect sync across multiple rooms or locations.
Built for Any Adventure
The Muo's IP67 waterproof and dustproof rating provides complete protection against rain, sand, spills and temporary immersion. An operating temperature range of -20°C to 45°C ensures reliable performance from winter outdoor use to summer adventures. Designed for total versatility, the Muo can be stood upright, laid down or hung using the carrying strap — fitting effortlessly into any lifestyle and environment. Plastic components comprise post-consumer recycled materials for a more sustainable production footprint.
KEF Connect App
The KEF Connect app provides full control over the Muo — select from EQ presets to match your taste, manage speaker settings and access the latest over-the-air firmware updates, all from one intuitive interface.
KEF Muo Key Features:
- Dedicated Racetrack Driver with P-Flex Surround: 58 x 117mm driver with technology adapted from KEF flagship subwoofers for deep, controlled and detailed bass down to 43Hz.
- 20mm Dome Tweeter: High-frequency sophistication for sharp, brilliant and detailed treble performance.
- 40W Total Class D Amplification: 30W MF/LF + 10W HF for powerful, efficient portable audio performance.
- Music Integrity Engine (MIE): Proprietary DSP tuned with LS60 Wireless technology for exceptional sonic accuracy and integrity.
- IP67 Waterproof & Dustproof: Complete protection against rain, sand, spills and temporary immersion.
- 43Hz–20kHz Frequency Response: Remarkably wide frequency range for a portable speaker of this size.
- Up to 24-Hour Battery Life: All-day playback at moderate volume levels.
- 15-Minute Quick Charge: Provides up to 3 hours of listening for fast turnaround.
- Bluetooth 5.4 with aptX Adaptive: High-resolution wireless audio up to 48kHz/24-bit from compatible devices.
- Google Fast Pair & Microsoft Swift Pair: Single-tap connection from compatible Android and Windows devices.
- USB-C Wired Playback & Charging: Straightforward laptop connection and universal charging.
- True Wireless Stereo (TWS): Wirelessly pair two Muo speakers for dedicated left and right channel stereo.
- Auracast Multi-Speaker Linking: Link multiple Muo speakers for synchronised playback across multiple locations.
- Built-In Speakerphone: Advanced noise and echo cancellation for crystal-clear hands-free calls.
- KEF Connect App: EQ presets, settings management and firmware updates.
- Versatile Placement: Stand upright, lay flat or hang using the included carrying strap.
- Premium Aluminium Construction: Designed by Ross Lovegrove, inspired by the iconic KEF Muon HiFi speakers.
- Operating Temperature -20°C to 45°C: Ready for any environment from winter outdoor use to summer adventures.
- Sustainable Materials: Plastic components comprise post-consumer recycled materials.
- 5 Colour Options: Midnight Black, Moss Green, Cocoa Brown, Amber Haze and Silver Dusk — each with a matching tone-on-tone carrying strap.
Manuals & Data Sheets:
Specifications:
View our shipping and delivery information below. All prices include VAT.
Important notice for non-UK orders: Any order being shipping outside of the UK will incur an import tax. See below for more information.
Cut-off Times
Orders must be placed before 3:30pm to guarantee same-day dispatch. Any orders placed after this time are not guaranteed to be shipped the same day, and are more likely to be shipped the next working day.
To guarantee Saturday Delivery, orders must ideally be placed before 2pm.
We operate during office hours, Mon-Fri, 9am - 5pm, and are closed during the weekend.
Orders placed over the weekend or Friday after cut-off will be processed and shipped the following Monday (or Tuesday during bank holidays).
Mainland UK Delivery Charges
Note: Next-day services are classed as working days (Mon-Fri) and do not include weekends. Please choose Saturday delivery if you require the item over the weekend.
Please also note orders with a high number of boxes may be subject to an additional charge.
All delivery options will be available at the checkout stage. Please ensure you add a mobile number to your order for tracking information.
Offshore & International
We ship to Scottish Highlands, Islands, Ireland and the EU. Please see the table below for base prices. Please note that these prices are subject to change based on the number of boxes.
The following postcodes fall under 'Highlands & Islands', and are subject to the above rates/lead time.
- Scottish Highlands: FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40 (excluding PA38), PH19-26, PH30-41, PH49-50
- Scottish Islands: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA38, PA41-49, PA60-78, PH42-44, ZE1-3
If a UK Mainland next-day service is selected at checkout, please be aware that it won't be sent on that service.
If you require a next-day service to Northern Ireland and the highlands, get in touch so we can assist further.
EU Import Tax
Any goods shipped outside of the UK, over a certain value, will incur an import tax. The cost and rate will depend on the country and the order value.
This is a legal requirement and MUST be paid prior to delivery in order to receive your goods. You will be contacted by the courier once the order is dispatched to pay the fee.
Failure to pay import tax when applicable will result in the order being shipped back to Audio Volt. Any returned goods sent back to us due to non-payment of import tax are NOT ELIGIBLE for a refund on the shipping charge.
You can obtain an import duty estimate here.
Delivery Notes
On delivery, you must inspect the goods carefully for damage as Audio Volt is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Audio Volt of such within three working days from the date of delivery.
60 Day Returns Policy
We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:
- Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product's return.
- Contact our Customer Services Team on 02476 369890 (or email info@audiovolt.co.uk). We will then send you an RMA number and a returns form, which needs to be completed and sent back with the returned item(s).
- If the order has been unpacked, re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.
- When returning an item, please obtain a proof of postage receipt from the courier.
Returned items must be mailed within 10 days of when the RMA number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.
Please note: our returns policy is quite straightforward, but there are a number of conditions that we ask our customers to comply with before applying:
- It is your responsibility to request a return. If you don't tell us you want to make a return, we don't know. Once you do tell us, we will do everything we can to action it.
- If you have not requested a return within 60 days of receiving an order, we will assume that you are intending to keep it, and we will not authorise a return.
- We always refund the payment according to how the original purchase was made and aim to do so within 72 hours of the return being received by us.
- Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.
- Delivery charges will not be refunded unless the delivered goods are faulty.
- Replacement products are dispatched immediately after the returned goods have been received and accepted by Audio Volt.
- Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369890 if you believe your item has developed a fault.
Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Audio Volt to process the return quickly.
Any Questions?
If you have any questions about our returns policy, please telephone us on 02476 369890 or email us at info@audiovolt.co.uk.
We operate during office hours, Mon-Fri, 9am - 5pm, and are closed during the weekend.
