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Deep black over-ear headphones with padded cups and foldable headband

Timbuk2 A9-1 Over-Ear Headphones 75h 40mm 3.5mm

SKU CH-KSGJ-Y6X0J

Over-ear Bluetooth headphones with 40 mm drivers, three EQ modes, 75-hour battery and a 3.5 mm wired backup option

  • Driver size60 mm
  • Headphone styleOver Ear
  • Connection3.5 mm
  • Wearing styleOver ear
  • Wireless technologyBluetooth
  • Battery pack75 h
  • Immersive 3D stereo sound from 40 mm drivers
  • Three EQ modes tailor audio to pop, bass or vocal styles
  • 75-hour battery life with 3.5 mm wired backup
  • Dual-device Bluetooth pairing switches between phone and laptop
  • Built-in HD microphone for clear hands-free calls

Over-Ear Headphones with 75-Hour Battery

Timbuk2 A9-1 headphones are over-ear wireless headphones built for daily commuting, office work, study and long trips. They offer up to 75 hours of playtime on a single charge and include a 3.5mm audio cable for wired backup when the battery runs low.

Bluetooth Wireless Limits and Wired Backup

The headphones connect wirelessly via Bluetooth and support simultaneous pairing with two devices such as a phone and laptop. When wireless range or battery life becomes a constraint, the included 3.5mm cable provides a direct wired connection for uninterrupted listening.

Check Device Compatibility and Port Availability

Verify that your source devices support Bluetooth audio and multipoint pairing if you plan to switch between two devices. Ensure at least one device has a 3.5mm headphone jack if you intend to use the wired backup mode.

How it compares

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

Price $22.99
Cheaper than about 55% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameTimbuk2
Model nameA-9, A9-1
Part numberA9-1
Product typeOver the Ear
Product colorDeep Black
Audio & video
Driver size60 mm
Headphone styleOver Ear
Wearing styleOver ear
Noise cancellationNone
Connectivity
Wireless technologyBluetooth
Ports & slots
Connection3.5 mm
Power
Battery pack75 h
Run time75 h

Questions about this item

Which driver size gives the best sound — 40 mm or 60 mm?

The headphones use 40 mm drivers for 3D stereo sound with three EQ modes, while the specifications also list a 60 mm driver unit; the larger figure may reflect a different measurement basis.

What does the 75-hour playtime mean for daily use?

Up to 75 hours of wireless listening on one charge; actual time varies with volume and content, and a 3.5 mm cable is included for wired backup when the battery runs low.

What does the 3.5 mm connector allow?

A 3.5 mm audio cable is supplied for wired listening when the battery is flat, and the headphones also connect wirelessly via Bluetooth for two devices simultaneously.

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