USER MANUAL – MH40 WIRELESS OVER-EAR HEADPHONES (2ND GENERATION) Master & Dynamic is a New York City-based premium audio company with a deep passion for building beautifully crafted, technically sophisticated sound tools. Designed to be modern yet timeless, our products utilize only the finest materials and are engineered to last, creating the perfect balance of aesthetics, strength, comfort, and exceptional sound.
OVERVIEW 1 1. Premium Coated Canvas Headband with Lambskin Interior 4. USB-C Input Audio and Charging 2. Replaceable Memory Foam and Lambskin Ear Pads 5. Forged and Machined Aluminum Components Throughout 3. Adjustment Arm 6. Dual Microphones SPECS 3 DIMENSIONS 205mm x 202mm x 71mm 2 WEIGHT 280g / 9.8oz IMPEDANCE 32 Ohms DRIVERS 40mm Titanium High-Performance Drivers 5 BLUETOOTH PROFILE® Bluetooth® 5.
ADJUSTABILITY, FIT AND COMFORT • Rotates for comfort around neck USER MANUAL • Adjust to find optimal fit.
FUNCTIONS RIGHT EARCUP VOL + MULTIFUNCTION BUTTON 1X: Play/Pause Answer/End Call 2X: Skip Forward Mute/Unmute Call 3X: Skip Back Long Press: Voice Assistant VOL - Pairing /Battery Level Indicator White light will pulse when headphones are in pairing mode. A solid white light indicates you are connected.
POWER ON PAIRING Press Power/Pairing button once to power ON/OFF. Battery level will be displayed at startup. Before listening, charge your headphones for at least 15 minutes and download the M&D Connect App to check for firmware updates. The first time you power ON your headphones they will enter pairing mode. Simply connect through the Bluetooth menu on your device and select M&D MH40W. To conserve battery power, headphones will power OFF after 30 minutes of inactivity.
ACCESSORIES REPLACING EAR PADS USB-C to USB-C Cable for Charging and Digital Audio USB-C to 3.5mm Cable Headphone Pouch USER MANUAL Flight Adapter USB-C to USB-A Adapter Ear pads are magnetized for easy removal/replacement. Simply grab the outside ring of the ear pad and remove. Reattach ear pads by alligning the two guide posts on the earcup with the two guide holes on the inside of the ear pad.
TROUBLESHOOTING MAINTENANCE TROUBLE PAIRING HEADPHONES AND DEVICE The headphones and device do not pair: 1. Make sure the headphones are not connected to the charger. Cycle power switch OFF and ON. 2. Turn the Bluetooth OFF, then ON again on the source device. 3. Turn OFF the Bluetooth feature on any other device that is paired with the headphones. 4. Hold power button down > 4 seconds to enter pairing mode. 5.
PREVENTION OF NOISE-INDUCED HEARING LOSS Our ability to hear is amazing. Treat your ears like the precious tools they are, and they will continue to provide you with exceptional data, as well as a lifetime of incredible sonic experiences. In general, do not listen “too loud or for too long,” and be attentive to your own ears. Ringing, discomfort, or sensitivity to high frequencies and treble may be a signal from your ears that you are pushing them to their limits and causing irreparable damage.
WARRANTY + CUSTOMER SERVICE Master & Dynamic guarantees this product against defects in materials or workmanship for a period of one year from the date of original purchase on our website or from an authorized Master & Dynamic retailer or reseller. Batteries are also guaranteed for proper functioning for a period of one year from the date of original purchase. Defective batteries are covered by Master & Dynamic’s Limited Warranty but battery wear from normal use is not covered.
