Superior audio - anywhere, anytime

Name: PSB M4U 9 - Premium Wireless ANC Headphones
SKU: 269530

Elevate your audio experience with the M4U 9 Wireless Noise-Canceling Headphones. Immerse yourself in pristine sound and enjoy wireless freedom with this premium headset. Whether you're a music enthusiast or a frequent traveller, the M4U 9 offers a perfect blend of cutting-edge technology and comfort.

Built for premium listening

The M4U 9 redefines premium listening with graphene-infused drivers, enhancing damping, stiffness, and efficiency for an unparalleled audio experience. These headphones continue PSB's industry-leading sound signature, delivering crystal-clear audio even in noisy environments. Its adaptive technologies mean you can rely on high-quality audio wherever you are with aptX™ Adaptive Bluetooth for low-latency audio and all-digital active noise cancellation. Experience premium audio anywhere life takes you.

Tuned just for you

Recognizing that everyone's hearing is unique, the M4U 9 employs Audiodo Personal Sound™. Each ear is assessed using precise audio tests and questions, and a personalized hearing profile is generated. Plus, four EQ presets, including , allow you to fine-tune your audio experience. Use the intuitive PSB Headphones App to control your settings, such as noise transparency and EQ presets.

Get out of your head

Discover an unparalleled listening experience with PSB's innovative RoomFeel technology. This advanced feature recreates the feeling of listening to high-quality in an acoustically optimized room. By mimicking the natural sound dispersion of speakers, RoomFeel takes the sound out of your head, providing a spacious and lifelike soundstage. Whether at home, on a journey, or immersed in entertainment, RoomFeel ensures that every note and detail is rich, natural, and open.

Listen longer in comfort

Crafted with comfort in mind, M4U 9 features gyro-suspended earpads, thoughtfully tilted at 15 degrees to provide ergonomic support. Meanwhile, its expandable headband, complete with a fabric inner cover, enhances overall comfort. Available in both fabric and leatherette, the soft earpads create an exceptional seal, preserving your sound quality. Enjoy 25 hours of runtime, or switch to wired operation through the 3.5mm or USB-C connections for uninterrupted listening.

Specifications

More Information

Frequency Response

LF Cutoff -10dB	10Hz - 23KHz
LF Cutoff -3dB	15Hz - 23KHz
Within ±1 1/2dB	20Hz - 23KHz

THD, total harmonic distortion

ANC: ON (1kHz/1mW)	0.5%
ANC: OFF (1kHz/1mW)	0.25%

Power Handling

Maximum

30mW

Impedance

Passive

32 Ohms

Transducer

Type	Dynamic, graphene-infused
Operating Principle	Closed
Size	40mm

Ear Coupling

Circumaural

Connection

3.5mm (1/8”) stereo jack (left or right)

Bluetooth aptX™ Adaptive, AAC

USB C

Cables

Standard Cable - 2m (78 3/4") Detachable Tangle-free

USB Cable - 2m (78 3/4") Detachable Tangle-free

Battery Life

Wireless Active Mode	25 hrs
Wireless ANC Mode	18 hrs

Construction

Headband	Spring Steel
Driver Enclosure	ABS Polycarbonate
Earpads/Headpad Cover	Leatherette and Cloth
Travel Case	EVA

Dimensions / Weights / Finish

Overall	200 x 200 x 90mm (7 7/8 x 7 7/8 x 3 9/16”)
Ear Cushion Outside	84 x 114 x 17mm (3 5/16” x 4 1/2” x 11/16”)
Travel Case	180 x 220 x 98mm (7 1/16” x 8 11/16” 3 7/8”)
Net weight	362g (12.8oz)0.9oz (25g) with cable
Shipping weight	1.6kg (3.45lbs)