• Search for Smartphones...
  • Search for Tablets...
  • Search for E-Readers & E-Paper Tablets...
  • Search for Accessories...
  • Search for Laptops...
  • Search for Gaming Computers...
  • Search for All in One PCs...
  • Search for Desktops...
  • Search for Monitors...
  • Search for Computer Accessories...
  • Search for Computer Components...
  • Search for Printers & Scanners...
  • Search for Action Cameras...
  • Search for Digital Cameras...
  • Search for Lenses...
  • Search for Compact Cameras...
  • Search for Camera Accessories...
  • Search for Instant Cameras...
  • Search for Camcorders...
  • Search for Cinema Cameras...
  • Search for Drones...
  • Search for Drone Accessories...
  • Search for Gaming Consoles...
  • Search for VR Headsets...
  • Search for Gaming Accessories...
  • Search for Headphones...
  • Search for Bluetooth Speakers...
  • Search for Home Cinema...
  • Search for DJ & Studio Equipment...
  • Search for Hi-Fi & Home Audio...
  • Search for Musical Instruments...
  • Search for Scooters...
  • Search for Bikes...
  • Search for E-Mobility Accessories...
  • Search for Apple Watches...
  • Search for Smartwatches...
  • Search for Vacuums & Mops...
  • Search for Kitchen Appliances...
  • Search for Home Appliances...
  • Search for Smart Appliances...
  • Search for Beauty & Personal Care...
  • Search for Air Treatment...
  • Search for Smart Lighting...
  • Search for Home Security...
  • Search for Smart Baby Care...
  • Search for TV...
  • Search for Projectors...
  • Search for Streaming Devices...
All categories
Phones & Tablets
Computers
Cameras
Drones
Gaming & VR
Audio & Music
Brands
Delivery in 1-4 business days for €0.99
Available to own

Delivery and returns

Get your device in 1-4 working days for €0.99. Learn more

Easy payments

No deposit. Small, secure payments Learn more

Great Condition Promise

All of our tech is quality checked. Learn more

Inside the box

Under the hood

Type

Over-ear Bluetooth headphones

Codecs

aptX, SBC

Battery

Up to 18h

Sensors

-

Connections

USB-C, Jack plug (3.5mm)

Key features

Lightweight anodized aluminum, coated canvas and lambskin leather, Custom 40mm drivers deliver rich, expansive sound, Re-engineered aluminum body for comfort during extended listening, Memory foam wrapped in lambskin for comfort, removable for cleaning.

Noise canceling

N/A

Wireless charging

N/A

Integrated microphone

2x Microphone filter out external noise for clear phone calls

Intelligent functions

-

Water/splash resistant

-

Frequency response, Sound pressure level & Impedance

32 Ohms

A rich audio experience from the Master & Dynamic MH40 headphones

Plush finishing and a gorgeous retro aesthetic

The Master & Dynamic MH40 headphones come complete with detachable cables, a leather cable box and a carry pouch. You can take them on the road or listen at home wirelessly through a Bluetooth 5.0 connection. The 1.25m cable has a mic, so you’ll be able to adjust the volume on your iOS device, as well as handle calls and manage your tracks.

Stunning design features and comfortable wear

The headband has been produced in robust aluminum and finished with soft cowhide, so it feels lightweight and stays comfortable. The cups have memory foam padding, and a cover made from velvety lambskin ensures they feel soft against your ears.

Eighteen hours of portable sounds

Master & Dynamic MH40 headphones will be fully charged in an hour and you can expect around eighteen hours of play. If you don’t have that long to wait, just leave them plugged in for 30 minutes and you’ll still have an acceptable nine hours of tunes.

Warm audio and no distractions

As you’d expect from premium headphones, the audio quality is good, with sparkling vocals and natural-sounding instruments. A pair of 40mm drivers create a loud, expansive level of sound whilst keeping the base clean. For uninterrupted listening, Master & Dynamic have added a beamforming noise reduction feature that simultaneously amplifies your tracks and minimizes exterior sounds.

Is there a Master & Dynamic app?

No, you can’t customize your listening experience using an app.

Frequently asked questions

How does the minimum rental period work?Plus Icon

You can rent for 1, 3, 6, 12, or 18+ months.

When your rental period is over, you can return your device for free, or keep renting for the same price every month. You can also switch to a longer rental period anytime.

Our rentals are flexible, so you can enjoy tech at your own pace. Learn more about how renting works.

What if I damage a device or cause signs of use?Plus Icon

We want you to enjoy our products as though they were yours. Small scratches and normal signs of use will be cleaned after return for free. There are no charges for device errors from the manufacturer.

In case of severe damage, Grover Care covers up to 90% of damages for all rental categories. Add Grover Care to your rental for better protection.

Check out our example photos of normal signs of use that we repair for free and also photos of more severe damage. Learn more about Grover Care.

How can I return the device?Plus Icon

You can return your device for free when your minimum rental period ends.

You just need to reset the device and remove any data. This way, we can rent the device safely to the next person. Then print out the shipping label, return the device, and your monthly payments will be stopped.

You can drop the device off at any post office or drop-off point of the shipping provider shown on the return label. Learn more about returns.

Will there be a credit check?Plus Icon

When you place an order, our algorithm checks your data to make sure you're a real person. We also complete a quick automatic credit check. This type of credit check is recorded on your credit report but doesn't have an impact on your credit rating.

If your order is declined, you can request a human review of this automated decision.

You can find further information on why and how we do credit assessments in Section 2.2. of our privacy policy.

Is there a cancellation policy?Plus Icon

If you change your mind and your order hasn’t been processed yet, you can cancel it in your account.

If the order has been processed, we can’t stop it from being shipped. But you can contact our support team and they’ll tell you how to proceed.

If your order has already been delivered, you can contact our support team and revoke your order for free within 14 days after delivery. Any delivery fee is not refunded. Learn more about our cancellation policy.

If you rent with Grover Business, there's no 14 days revocation period. But you can contact our business support and ask for a device exchange.

Are there any voucher conditions?Plus Icon
If you're a new Grover customer using our welcome voucher (NEU100 in Germany, START100 in Austria, AHORRA100 in Spain, and BEGIN100 in The Netherlands), then your monthly rent can have a maximum value of €100/month for all devices. All devices will also need to have a subscription period of 3 months or longer.