English 
Suomi 
Marshall Major IV Black
Key Specs
| Wearing Style | Dual Ear with HeadbandFoldable: Yes Earpiece Swivel: No |
|---|---|
| Earpiece Design | On-Ear (Supra-Aural) |
| Active Noise Cancellation | No |
| Frequency Response | 20 Hz to 20 kHz (Wireless) |
| Built-In Controls | Yes, on Earpiece |
| Sensors | No |
| Noise Cancelling Microphone | No |
| Number of Voice Mics | 1 |
| Runtime | 80 Hours (BT) |
Headphone
| Wearing Style | Dual Ear with HeadbandFoldable: Yes Earpiece Swivel: No |
|---|---|
| Earpiece Design | On-Ear (Supra-Aural) |
| Open/Closed-Back | Closed-Back |
| Sound Field | Stereo |
| Number of Drivers | 1 per Earpiece |
| Driver Type | Dynamic |
| Driver Size | 1.6" / 40 mm |
| Impedance | 32 Ohms |
| Active Noise Cancellation | No |
| Frequency Response | 20 Hz to 20 kHz (Wireless) |
| Sensitivity | 99 dB SPL at 1 kHz / 100 mV |
| Volume Limiting / Child-Safe | No |
| Built-In Controls | Yes, on Earpiece |
| Sensors | No |
Microphone
| Built-In Mic | Yes, on Earpiece |
|---|---|
| Noise Cancelling Microphone | No |
| Number of Voice Mics | 1 |
Connectivity
| Wireless | Bluetooth 5.0 |
|---|---|
| Wireless Range | 32.8' / 10 m (Bluetooth) |
| Audio Connector | 1x 1/8" / 3.5 mm |
| Audio Connector to Earpiece | 1/8" / 3.5 mm |
| Mobile App Compatible | No |
Battery
| Runtime | 80 Hours (BT) |
|---|---|
| Quick Charging Times | 15 Minutes for 15 Hours |
| Recharge Time | 3 Hours |
| Charging Input | USB-C |
| Wireless Charging | Yes |
Physical
| Color | Brown |
|---|---|
| Weight | Headphones:5.8 oz / 165 g |
Packaging Info
| Package Weight | 1.02 lb |
|---|---|
| Box Dimensions (LxWxH) | 6.7 x 6.3 x 3.2" |
Identifiers
| MPN | 1005773 |
|---|---|
| GTIN / EAN / UPC | 7340055379458 |
