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Dark Grey over-ear headphones with padded ear cups and adjustable headband

CMF BY NOTHING Headphone Pro B175 Dark Grey over-ear headphones

SKU CH-F790-6P7K7

Over-ear wireless headphones with 40 dB adaptive noise cancellation, 50-hour ANC playtime, LDAC and Bluetooth 5.4, custom EQ via app, 3.5 mm wired option, 283 g

  • Driver size40 mm
  • Frequency range20000 Hz
  • Headphone styleOver Ear
  • Signal-to-noise ratio40 decibels
  • Power supplyBattery, lithium ion, 9v, true
  • Audio sensitivity40 decibels
  • Adaptive ANC up to 40 dB blocks noise
  • 50 hours playback with ANC enabled
  • Bluetooth 5.4 with LDAC high-resolution audio
  • Custom EQ and spatial audio via app
  • 283 g lightweight design with memory foam earpads

CMF Headphone Pro B175 overview

The CMF Headphone Pro B175 is a new over-ear wireless headset from CMF by Nothing. It connects via Bluetooth 5.4 and includes a 3.5 mm cable for wired listening. The 40 mm dynamic drivers support Hi-Res LDAC audio. Adaptive active noise cancellation reduces external sound by up to 40 dB. A transparency mode lets ambient sound in when needed.

Who these suit and who they don't

Commuters and office workers who want long ANC battery life and adjustable bass or treble will like the 50-hour ANC playtime and the physical slider. The Nothing X app adds custom EQ and spatial audio profiles. Buyers who need more than 40 dB of noise reduction or who prefer a lighter frame than 283 grams should look at other models.

Installing and common issues

Pairing is quick with Google Fast Pair on Android and Microsoft Swift Pair on Windows. The headphones also work with iOS, macOS and other Bluetooth sources. The ear cups fold flat for storage. Some users report occasional multipoint connection drops when switching between two active devices. Firmware updates through the app usually resolve this.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $108.99
Pricier than about 86% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameCMF BY NOTHING
Product line3
Model nameCMF Headphone Pro, B175
Part numberB175
Product typeOver the Ear
Product colorDark Grey
Performance
Supported distance10 m
Audio & video
Driver size40 mm
Frequency range20000 Hz
Headphone styleOver Ear
Signal-to-noise ratio40 decibels
Audio sensitivity40 decibels
Wearing styleOver ear
Noise cancellationActive
Mic frequency response20000 Hz
Mic signal-to-noise ratio40 decibels
Mic sensitivity40 decibels
Connectivity
Wireless technologyBluetooth
Ports & slots
Connection3.5 mm
Power
Power supplyBattery, lithium ion, 9v, true
Battery pack100 h
Run time100 h
Charging time5 minutes
Built-in batteryBattery
Size & build
Cord lengthCable
Product weight283 g
In the box
In the boxHeadphone × 1, Protective Case, Cable, User Manual

Questions about this item

What Bluetooth version does my phone need for the Headphone Pro B175?

The Headphone Pro B175 uses Bluetooth 5.4, so any phone or computer with Bluetooth 5.4 or earlier will pair and stream audio.

Can I use the 3.5 mm cable when the 100-hour battery runs out?

Yes, the included 3.5 mm cable lets you keep listening with zero battery drain, and the 40 mm drivers still deliver sound.

How do I confirm the 40 dB adaptive ANC is active after pairing?

Press the ANC button; you will hear a prompt and ambient noise drops. The Nothing X app also shows the ANC status and lets you tune the level.

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