- Major IV delivers the signature Marshall sound that you’ve come to expect. Custom-tuned dynamic drivers deliver roaring bass, smooth mids and brilliant treble for a rich, unrivalled sound that you’ll never want to turn off.. Driver Impedance : 32 Ω. Frequency Range : 20-20,000 Hz. - 80+ solid hours of wireless playtime with quick-charge capability – only 15 minutes of charging will give you 15 hours of listening. These are headphones truly built for the long haul. - Improved ergonomic design means that when you’re deep diving into your music, the tenth hour is as comfortable as the first. Major IV’s ear cushions are softer to the touch and more faithfully fit the shape of your ear. - Major IV can be charged wirelessly, so it’s now easier than ever to charge and go. Spend less time looking for your charger in a mess of wires and more time listening to your music. You will receive a USB-C charging cable in the box. Wireless charging pad is not included - With the multi-directional control knob you can play, pause, skip and adjust the volume of your device, as well as power your headphones on or off. Phone functionality is also included so you can answer, reject or end a call with a few simple clicks. - Major IV combines enhanced usability with classic Marshall elements like the multi-directional control knob, textured black vinyl and the Marshall script for a design that is both iconic and innovative. The new fold clip means that Major IV folds away into an even more compact size, and the ear caps are protected from too much wear and tear. - Major IV features a 3.5 mm socket so a friend can plug in and enjoy your music. - Included components: Major IV Headphones, 3.5mm audio cord, User Manual and legal and safety information, USB-C charging cable Audio Specifications: Driver Type: Dynamic Driver Sensitivity: 106 DB SPL (100MV @ 1KHZ) Driver Impedance: 32 Ω Frequency Range: 20-20,000 HZ Drivers: 40 MM Battery: Play Time: 100+ HOURS OF WIRELESS PLAYTIME Battery Preservation: YES Wireless Charging: YES Quick Charging: 15 MINUTES CHARGING GIVES 15 HOURS OF WIRELESS PLAYTIME Charging Time: 3 HOURS TO FULL RECHARGE Wireless Connectivity: BLUETOOTH 5.3 Wired Connectivity: 3.5 MM INPUT/OUTPUT Connectivity: BLUETOOTH + WIRE Bluetooth Range: 10 M / 30 FT Customise Sound: YES Controls: CONTROL KNOB, M-BUTTON Voice Command: NO Codecs: SBC + MPEG-2 AAC + LC3 Microphone & Remote: YES Active Noise Cancellation: NO Compatible Apps Apps: MARSHALL BLUETOOTH APP Physical Unit Weight: 186 G Water Resistance: NO Colorways: BLACK Collapsible: YES Headphone Type: ON-EAR 12 Months Local Manufacturer Warranty Store in a cool dry place. China