The Marshall Willen II is for listeners who want a speaker small enough to attach to a bag, belt loop, or bike basket without treating weather protection as an afterthought. It weighs about 0.79 pounds, carries an IP67 rating, and includes a flexible fastening strap. FoneArena describes clear vocals and a fuller sound than its size suggests.
The limits matter. A single 2-inch driver cannot create deep bass or a wide stereo image, and the Willen II has no auxiliary input. Marshall's 17-hour-plus battery claim is strong for this size, but one independent reviewer saw closer to 14 to 15 hours. Buy it for portability, controls, and durability. Move up to an Emberton-class speaker if bass weight and output matter more than pocketable dimensions.
Table of Contents
Quick Verdict
| Best for | One-person listening, travel, bathrooms, patios, and clipped-on use |
|---|---|
| Strongest qualities | Small size, fastening strap, physical controls, IP67 protection, clear midrange |
| Main compromises | Limited deep bass, mono presentation, no 3.5 mm input, preset-only app EQ |
| Battery reality | Marshall claims 17+ hours; FoneArena reported roughly 14 to 15 hours in its use |
| Skip it when | You need party volume, a stereo soundstage, wired playback, or heavy low bass |
Much of the Willen II's appeal comes from not pretending to be a party speaker. It is a personal portable speaker with stronger dust and water protection than a typical home model. It works best close to the listener, not across a large yard or noisy gathering.
How Small Is the Willen II?
B&H's specification table lists the cabinet at roughly 4 by 4 by 1.7 inches and 0.79 pounds. It is much smaller than a conventional cylindrical speaker. The fastening strap stretches across the rear and can wrap around a narrow handle or strap point, although the security of any improvised attachment still depends on the surface.
The square cabinet follows Marshall's familiar amplifier styling, with a textured grille and brass-colored control knob. The shape sits more securely on a flat shelf than many clip speakers, while the strap handles situations where a shelf does not exist. It is small enough for a day bag, but its thickness and rigid corners make a jacket pocket less comfortable than the marketing photos imply.
The multi-directional control knob is one of the better reasons to choose this model over a touch-heavy alternative. It handles play, pause, track navigation, and volume without requiring the phone. Separate controls cover Bluetooth and power, avoiding reliance on an unmarked touch panel.
What to Expect From the Sound
Marshall lists one 2-inch, 10-watt full-range driver, two passive radiators, and a stated frequency range of 75 Hz to 20 kHz. This is a mono speaker. The specification does not establish how loud the lowest frequencies remain, while FoneArena describes the low end as decent for the size rather than room-shaking.
FoneArena's hands-on review describes the sound as rich and dynamic for the size, with clear high frequencies, defined mids, and respectable low end. The reviewer is equally clear that the bass is not room-shaking. That balance makes sense for podcasts, vocals, acoustic music, casual pop, and listening within a few feet. Bass-heavy dance music at a gathering asks much more from the driver.
As a general placement rule, a nearby wall can add upper-bass weight while open-air hanging tends to sound leaner. A flat, stable surface also prevents the cabinet from moving or buzzing against nearby objects. If speech is buried, the Voice preset can help; if the sound becomes strained, lowering the volume is more effective than adding bass.
A single small driver cannot produce meaningful left-right separation. Auracast readiness does not change the width of one cabinet, so a buyer seeking a broader presentation should look at the larger Marshall Emberton III.
Controls, App, Calls and Auracast
The built-in microphone lets the Willen II act as a speakerphone. That is useful at a desk or in a quiet room, but a small speaker on a windy trail is not a substitute for a headset microphone. The microphone also adds a reason to keep the speaker close instead of turning it into background audio across the room.
The Marshall Bluetooth app handles firmware updates and offers three EQ presets. FoneArena identifies them as Marshall Signature, Push, and Voice. There is no full multi-band equalizer, so buyers who enjoy precise sound shaping may find the app limited. The presets are better understood as quick task choices: Signature for general music, Push for more energetic playback, and Voice for spoken content.
Bluetooth 5.3 LE and Auracast readiness are included in the current feature set. Auracast is intended to let a source broadcast to compatible receiving devices, but support depends on the phone, operating system, firmware, and other speakers involved. Do not buy the Willen II solely on the assumption that it will group with every Bluetooth speaker. Confirm the exact compatibility of the devices you plan to connect.
There is no 3.5 mm auxiliary input. All music playback is wireless, and USB-C is for charging rather than a general analog connection. That omission matters for older players, in-flight screens, and televisions without dependable Bluetooth.
Battery Life and Charging
Marshall claims more than 17 hours of portable playtime. It also states that a 20-minute charge can provide 5.5 hours and that a full charge takes about 2.5 hours. These figures come from the manufacturer and will vary with volume, temperature, calls, and the material being played.
FoneArena reported about 14 to 15 hours in normal use, below the headline claim but still useful for a speaker this small. The same review saw approximately two hours for a full charge and close to five hours of playback after a short top-up. One review cannot define every unit, yet it gives a more realistic planning number than assuming the maximum claim will repeat outdoors at high volume.
For a day trip, recharge before leaving rather than relying on the last battery segment. For storage, avoid leaving a lithium battery fully empty for months. Use a known-good USB-C cable, keep the port free of sand and lint, and never charge while moisture remains in or around the connector.
What IP67 Does and Does Not Mean
IP67 means the enclosure is rated dust-tight and can withstand temporary immersion in water up to one meter for 30 minutes under the test conditions Marshall describes. It is useful protection for rain, splashes, dusty bags, and accidental drops into shallow water. It is not permission to charge the speaker wet, expose it to high-pressure jets, or assume salt water and pool chemicals are harmless.
If the speaker gets soaked, rinse residue only when the manufacturer's care instructions allow it, wipe the exterior, and let the port dry completely before charging. Water ratings apply to an intact product. Damage, worn seals, debris, and temperature changes can alter protection over time.
The strap also needs common sense. It is useful for transport and placement, but it does not certify the speaker for high-speed cycling, climbing, or any position where a falling object could injure someone. Check the strap and attachment point before each use.
Owner Reports Worth Knowing
Recent community posts surface two problems worth checking without proving either is widespread. One r/marshall owner reported thin, distorted sound after the speaker had been stored or used in humid conditions. Replies speculated about condensation, but the thread does not establish a cause. Another owner reported a charging failure shortly after the local one-year warranty had ended.
These are individual troubleshooting reports, not a failure-rate study. They still suggest a sensible inspection routine: confirm charging as soon as the speaker arrives, install current firmware, listen for clean voices at moderate volume, and keep proof of purchase. Warranty length varies by country and seller, so check the local terms before buying from a marketplace.
If sound changes suddenly, disconnect other sources, restart the speaker, return the EQ to Signature, update firmware, and test at a lower level. If charging stops, try a known-good cable and charger only after the port is dry. Persistent distortion or charging failure belongs with Marshall support, not a home repair attempt that could compromise the seal.
Alternatives and Comparisons
| Alternative | Choose it when | Main difference |
|---|---|---|
| JBL Clip 5 | An integrated carabiner and familiar JBL ecosystem matter | Different attachment design and tuning |
| Tribit StormBox Micro 2 | Value and bike-friendly mounting take priority | Usually positioned below Marshall on price |
| Ultimate Ears Miniroll | A flexible strap and simple outdoor focus are the goal | Competes directly on rugged portability |
| Marshall Emberton III | More bass, output, and broader presentation justify extra size | Larger and less pocketable |
Direct sound rankings should come from a level-matched comparison, not brand reputation. In practical terms, the Willen II earns attention through controls, styling, protection, and its balance of size against vocal clarity. The larger Emberton is the safer move when a group rather than one listener needs to hear it.
Should You Buy the Marshall Willen II?
Buy it if you need a genuinely small speaker with physical controls, a useful strap, IP67 protection, a microphone, and enough battery for a full day away from power. It suits travel, spoken audio, background music, and close-range listening better than a crowded party.
Skip it if deep bass, stereo width, a wired input, or maximum output is central to the purchase. The Willen II can sound impressive relative to its dimensions, but “for its size” is doing important work in that sentence. Choose the smallest speaker that meets the job, not the smallest speaker and then ask it to behave like a boombox.
Frequently Asked Questions
Does the Marshall Willen II have an AUX input?
No. Music playback is over Bluetooth. The USB-C connection charges the battery.
Can the Willen II be submerged?
Marshall's IP67 claim covers temporary immersion up to one meter for 30 minutes under specified conditions. Dry the speaker and charging port completely before connecting USB-C.
Does it last the full 17 hours?
Marshall claims more than 17 hours. FoneArena reported about 14 to 15 hours in its use. Volume, temperature, calls, and content can change the result.
