Headphone and amp maker, Marshall, has announced an own-brand smartphone out of the blue aimed at music lovers. Here's all the info on the Marshall London phone including release date, price and specs. See also: Best new phones you should be excited about launching in 2015.

Read our world exclusive Marshall London review.

Almost every smartphone gets leaked ahead of its launch but we didn't hear anything about Marshall making a phone so this one seems pretty sudden and not something we would have even predicted. Nevertheless, Marshall's smartphone is here and looks pretty interesting to boot.

"We always aim to go big! To always give our consumers the best user experience. When there was no smart phone on the market putting the music on the main stage, we created it. We know that our consumers and the open market is ready for what we have to give: A smartphone by default, developed into the world's greatest music device and we promise you, Marshall London is nothing like you've ever had in your pocket," said Konrad Bergstrom, Founder of Zound Industries.

Marshall London release date and price UK

The Marshall smartphone is available to pre-order now and will be released in 'late August' or 'middle of September' depending on country. The online shop tells us that expected delivery is 17 August which is pretty specific.

If you're interested then the Marshall London costs £399 which is a fair amount less than flagship phones like the Samsung Galaxy S6 and LG G4. Plus, if you pre-order online you'll get a free pair of Marshall Monitor headphones worth £179 which isn't a bad deal at all.

Marshall Android phone

Marshall London specs and features

As you would expect, the Marshall London is packed with music related features and we'll explain them all, but first let's look at the core specifications of the device itself which is manufactured by Creoir.

The Marshall London has a 4.7in screen with a 720p resolution, Qualcomm Snapdragon 410, 2GB of RAM, 16GB of storage and a Micro-SD card slot. There's also an 8Mp rear camera, 2Mp front camera, removable 2500mAh battery and Android 5.0.2 Lollipop.

That's not exactly exciting with this kind of spec (or better in some cases) available on a lot of budget phones. However, the Marshall London phone is more about the design and music features so don't get too upset just yet.

Marshall says the London 'might just be the loudest mobile phone on Earth' thanks to its front facing stereo speakers. There's also a dedicated 'M' button on the top giving to instant access to your music, whatever the source. Plus there are not one, but two headphone ports so you can easily share your listening experience with a friend without disturbing others with those built-in speakers.

Marshall London phone music features

The black and gold design is something a little different and you get the Marshall logo, of course. An interesting design element is the scroll wheel which sits on the side allowing you to adjust the volume in a new way. We don't think it actually goes to 11 but we hope and we're also waiting to find out if it can be used to scroll though menus, web pages and the like which would be awesome. The gold bits – headphone ports, m button and scroll wheel – are all made of brass.

Update: Sadly, we have confirmation that scroll wheel only does volume. Hopefully someone can make a hack so we can use it for navigation.

That's not it for audio features as Marshall has fitted the London with Wolfson WM8281 Audio Hub. "This soundcard gives the London a separate processor for music, allowing it to play at a higher resolution," explains the firm and the phone supports FLAC files.

Furthermore, the London supports aptX Bluetooth, there's a global equalizer which will affect whatever music player you use, dual microphones and apps such as a DJ app and Loopstack which is a four channel recorder which supports 16-bit, 44KHz.

Last but not least on the list is that the Marshall London is shipped with a pair of Mode in-ear headphones (as well as the free Monitor cans if you pre-order) which the firm promises are highly rated.

Check out the full Marshall London phone specs below:

OS: Android 5.0.2 Lollipop
Screen: 4.7in IPS LCD, 720p
Processor: Qualcomm Snapdragon 410, 1.2GHz quad-core, Gorilla Glass 3
Memory: 2GB RAM
Storage: 16GB, Micro-SD card slot
Cameras: 8Mp rear, 2Mp front
Connectivity: Dual-band Wi-Fi, Bluetooth 4.1, GPS, 4G LTE
SIM: Nano-SIM
Battery: 2500mAh removable
Music features: Dual headphone ports, Wolfson WM8281 Audio Hub, volume scroll wheel, aptX, FLAC support, 'M' button, front facing stereo speakers, dual microphones
Dimensions: 140 x 70 x 9.8mm, 145g