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Black over-ear headphones with padded cups, foldable headband, coiled cable and 3.5/6.35 mm plug

OneOdio A71D Wired Over-Ear Headphones 40mm 32Ω

SKU CH-P44V-EEM8K

Wired over-ear headphones with 40 mm drivers, 32 Ω impedance and 2.2 m cable ending in 3.5 mm and 6.35 mm plugs

  • Frequency range5 Hz-16 kHz
  • Impedance80 ohms
  • Power supply12v, nonstandard battery
  • Connection3.5 mm
  • Wearing styleEarbud
  • Noise cancellationPassive
  • Hi-Res certified sound via 40 mm drivers
  • Single-ear monitoring with 90° swivel cups
  • All-day comfort from padded muffs and adjustable band
  • Wired 2.2 m cable with 3.5 mm and 6.35 mm plugs
  • Foldable design for portable studio use

Wired Over-Ear Studio Headphones

The OneOdio A71D is a wired over-ear headphone built for studio monitoring, DJing, recording, and podcasting. It uses 40 mm drivers with a 32 Ω impedance and a sensitivity of 110 dB. The foldable frame and 90° swivelling ear cups support single-ear monitoring and easy transport.

32 Ω Impedance for Wide Device Compatibility

The 32 Ω impedance allows the headphones to be driven directly by laptops, audio interfaces, mixers, amplifiers, guitars, and keyboards without a dedicated headphone amplifier. A 3.5 mm to 6.35 mm adapter is included for professional 6.35 mm jacks.

Passive Isolation with No Power Required

Passive noise isolation reduces ambient sound without batteries or active circuitry. The non-detachable 2.2 m cable connects via 3.5 mm plug, and the 32 Ω load draws minimal current from the source device. No power supply or charging is needed.

How it compares

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

Price $43.99
Pricier than about 68% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand namePHILIPS
Model nameWFL900/H
Product typeOn-Ear
Product colorWhite
Audio & video
Frequency range5 Hz-16 kHz
Impedance80 ohms
Wearing styleEarbud
Noise cancellationPassive
Mic signal-to-noise ratio110 decibels
Mic sensitivity110 decibels
Connectivity
Wireless technologyBluetooth
Ports & slots
Connection3.5 mm
Power
Power supply12v, nonstandard battery
In the box
In the boxFusion A71D Wired Headphones, 3.5 mm Non-detachable Audio Cable, 3.5 mm to 6.35 mm Adapter, User Manual

Questions about this item

What does the 110 dB sensitivity mean when I plug these into my laptop?

At 110 dB sensitivity the A71D reaches loud listening levels from a typical laptop or phone output without needing a dedicated amplifier.

How does the dual 3.5 mm and 6.35 mm plug affect what gear I can connect to?

The detachable 2-in-1 plug fits both 3.5 mm and 6.35 mm jacks so you can move between portable devices mixers and audio interfaces without an extra adapter.

Will the 40 mm drivers and foldable hinges fit inside a standard DJ bag?

The 40 mm over-ear cups fold flat and the headband collapses making the A71D compact enough for most DJ and equipment bags.

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