10 Watts of Marshall DNA in 360 Grams
The Willen II packs a single 2-inch full-range driver and two passive radiators, powered by a 38W Class D amplifier. That's 10 watts of output from a speaker that weighs less than a can of soda. Marshall tuned this thing to push bass harder than the original Willen, and you can hear the difference immediately. The low end is fuller, more present, without muddying up vocals or guitars.
The frequency response runs from 75 Hz to 20,000 Hz. For a speaker this size, getting down to 75 Hz is solid. It won't rattle windows, but it fills a hotel room, a tent at a campsite, or a bathroom while you're getting ready. The sealed cabinet with passive radiators keeps everything tight and controlled even at full volume.
IP67 Means You Can Actually Submerge It
Most portable speakers are "splash-proof" and call it a day. The Willen II is IP67 - fully dust-tight and rated for submersion in a meter of water for 30 minutes. That's not just surviving rain. That's surviving a drop in the pool, a spill at the campsite, or a muddy festival field.
The rubber fastening strap on the back lets you hang it from a shower rod, clip it to a backpack strap, or stand it up on a railing. It's one of those design choices that sounds minor until you use it every day. No more propping your speaker against a water bottle and hoping it stays upright.
17+ Hours on a Single Charge
Marshall quotes over 17 hours of battery life, and real-world testing backs that up at moderate volumes. That's enough to get through a full weekend camping trip without reaching for the charger. If you do run low, a 20-minute USB-C quick charge gets you 5.5 hours back. Full recharge takes about 2.5 hours.
For a speaker you'll toss in a bag and forget about, this kind of battery life changes how you use it. You stop thinking about charging schedules. You just grab it and go. That's the whole point of a speaker this portable.
Bluetooth 5.3 with Multipoint and Stack Mode
The Willen II runs Bluetooth 5.3 LE with a range of up to 100 meters in open space. Multipoint connection lets two devices stay paired at once, so you and a friend can take turns DJing without the awkward "disconnect, re-pair, wait" routine. It also comes LE Audio-ready, which future-proofs it for Auracast sharing when more devices support it.
Stack Mode is Marshall's party trick: pair multiple Willen II speakers together and they all play in sync. Buy two, put one at each end of the table. The built-in microphone handles hands-free calls too, so you don't have to pause the music and fumble for your phone when someone rings.
Features
10W Full Range Driver
One 2-inch driver and two passive radiators powered by a 38W Class D amp. Bass that defies the speaker's size, with a frequency response from 75 Hz to 20,000 Hz.
IP67 Dust & Waterproof
Fully sealed against dust. Survives submersion in 1 meter of water for 30 minutes. Rain, pool splashes, muddy festivals - nothing stops this speaker.
17+ Hours Battery Life
Over 17 hours on a single charge. A quick 20-minute USB-C charge gives you 5.5 hours back. Full recharge in about 2.5 hours.
Bluetooth 5.3 LE / Multipoint
Connect two devices at once and switch between them instantly. Up to 100-meter range in open space. LE Audio-ready for future Auracast support.
Stack Mode
Link multiple Willen II speakers together for synchronized playback. Two at a dinner, four at a party. No limit on how many you can stack.
Built-in Microphone
Take calls hands-free without pausing your music to grab your phone. The integrated mic picks up your voice clearly for quick conversations.
Who Is This For?
The Weekend Adventurer
You're out the door by 8 AM on Saturday - hiking, paddleboarding, camping, whatever the weekend throws at you. The Willen II clips to your pack with its rubber strap, weighs next to nothing at 360 grams, and its IP67 rating means you stop worrying about weather or water. 17+ hours of battery gets you through the entire trip without a charger.
The Small-Space Listener
Your apartment kitchen, your bathroom, your desk at work. You want music in every room but you don't want a speaker collection taking over your shelves. The Willen II is barely bigger than a coaster, puts out surprisingly full sound for its size, and the fastening strap means it hangs on a hook when you're not using counter space. One speaker, five rooms.
The Festival & Party Regular
You're the friend who always brings the speaker. Stack Mode lets you pair multiple Willens for bigger sound at a BBQ or campsite. IP67 means a spilled drink or a rainstorm doesn't end the session. Multipoint Bluetooth lets two phones stay connected so the playlist keeps rotating. And the black and brass look? It gets noticed.
Specifications
General
Drivers
Additional Information
Supplied Accessories
Inputs/Outputs
Dimensions
Documents & Downloads
- Marshall Willen II Spec Sheet (PDF) datasheet
- Marshall Willen II User Manual (EN - PDF) manual
- Marshall Product Page product-page
- specs
