The DEVA Pro are HIFIMAN's open-back planar magnetic headphones that work wired or wirelessly with the supplied Bluemini R2R Bluetooth dongle, for home listening with a phone or computer.
Reviewers agree the Deva Pro is a light, comfortable open-back with sound that is very good for Bluetooth, and Headfonia and Headfonics found it more refined than the original Deva. SoundStage! Solo heard little difference from the Deva. Headfonics found it needs good power to shine and missed volume control over Bluetooth, and Headfonia wanted a cheaper wired-only option.
Planar magnetic with Stealth Magnets and NEO supernano diaphragm (NsD); 20 Hz – 20 kHz; sensitivity 93.5 dB
Chip
Bluemini R2R dongle with Qualcomm QCC5124 Bluetooth chip and HIFIMAN HYMALAYA R2R DAC; 20 Hz – 20 kHz; signal-to-noise ratio 114 dB; codecs LDAC, aptX HD, aptX, AAC and SBC
Battery
Listening time (maker's claim)
Up to 7 hours
Battery life detail
Bluemini R2R 6–7 hours, per HIFIMAN's current specifications; the 2021 launch announcement gave 8 hours
Design
Weight
360 g
Bluetooth
5.0
Headphone cable
Yes
Microphones
Built into the Bluemini dongle; not available in USB DAC mode
Fit and ear tips
Over-ear, open-back (Headfonics); padded headband with two adjustment blocks; bevelled clip-on ear pads
Works with
Dual-sided 1.5 m 3.5 mm TRS cable; the left socket also takes a single-sided 3.5 mm TRRS balanced cable (not included) or the Bluemini dongle; not compatible with TS cables; USB-C on the Bluemini for charging and USB audio (not iPhones)
In the box
Headphones, 1.5 m cable (3.5 mm plug), USB-C to USB-A cable, 3.5 mm to 6.35 mm adapter, Bluemini R2R, ear pads (fitted). The Bluemini weighs 25 g and is not included with the DEVA Pro-wired
Pros and cons
Pros
+Wired or Bluetooth use; the Bluemini R2R dongle supports LDAC, aptX HD, aptX, AAC and SBC
+Bluemini also works as a USB DAC and amplifier over USB-C
+Stealth Magnets and NEO supernano diaphragm; 18-ohm impedance and 93.5 dB sensitivity
Cons
−Short 6–7 hour battery life from the Bluemini dongle
