Under amour project rock over

Project Rock Over-Ear Training Headphones

• Design

  • Understated, all-black aesthetic
  • IPX4 rating
  • Comfortable and breathable ear cushions

  Look at the Project Rock headphones and there’s no mistaking that their use isn’t for any venue other than a gym. The all-black design coupled with the two bull icons on both ear-cups show they mean business. Without a discernible stylistic flourish, they’re not going to catch anyone’s attention on the street; but I really enjoy the overall aesthetic.

  Model	PROJECT ROCK
  Driver size	40mm / 1.57″ dynamic driver
  Power supply	5 V
  Weight	294g / 0.65lbs
  Battery type	Polymer lithium-ion (610 mAh / 3.7V)
  Charging time (USB-C)	< 2hrs from empty
  Music play time with BT on and ANC off	45 hrs
  Music play time with BT on and ANC on	35 hrs
  Frequency response	20Hz – 20kHz
  Impedance	32 ohm
  Sensitivity	102 dB SPL@1kHz / 1mW
  Maximum SPL	92dB
  Microphone sensitivity	-20dBV @1kHz / Pa
  Bluetooth version	5.0
  Bluetooth profile version	HFP V1.7, A2DP V1.3, AVRCP V1.6
  Bluetooth transmitter frequency	2.4GHz – 2.4835GHz
  Bluetooth transmitter power	< 9dBm EIRP
  Bluetooth transmitter modulation	GFSK, π/4 DQPSK, 8DPSK
  Maximum operation temperature	45°C

   Features

  • Lots of variations for ANC and Ambient mode
  • Disappointing ‘Project Rock’ equalizer
  • Battery lasts for ages

  If Under Armor can be thanked for the design, it’s clear JBL’s sound-engineering expertise drives the device’s feature set.

  Active noise cancellation is present, and there are two modes to choose from: Everyday and Active. Active mode is best saved for runs, retaining a degree of noise-cancelling whilst letting in some ambient sounds to establish awareness of surroundings.

  Sound Quality

  • Great overall sound quality that’s a pleasure to hear
  • Vocals can get lost in bass-heavy songs
  • Non-workout tracks fare just fine

  So the build quality of these headphones is great, and the feature set – despite a few issues – is largely solid – but what about the Project Rock headphones’ sound quality? Well, given their intended use, let’s kick things off with one of my favourite workout tracks: Godzilla by Eminem.

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