UA Project Rock True Wireless – Engineered by JBL


Truly wireless sport headphones to maximize each and every workout, with JBL technology and sound


Wireless freedom built for the grind

UA Project Rock True Wireless offers a truly cord-free experience built for the grind. UA Storm waterproof technology and Antibacterial Sport Flex Fit ear tips were crafted specifically for all-condition training while the JBL Charged Sound was boldly optimized and tuned with rich bass for motivation. Hear your surroundings with Bionic Hearing featuring TalkThru Technology for quick conversations with just one touch, and AmbientAware Technology to hear your surroundings for increased safety. With a total of 25 hours battery life and a rugged aluminum charging case, these headphones truly break the limits.


General Specifications

Weight (g) 115g
Included charging cable, ear fit tips
Transducers JBL 5.8mm dynamic drivers and four JBL microphones
Frequency response 20Hz - 22kHz
Sensitivity 95 dB@ 1kHz/1mW
Maximum SPL 113dB
Microphone sensitivity -25dBV@1kHz/Pa
Impedance 14ohm
Charging case battery life Up to 20 hours
Charging case charge time 2 hours from empty

Control and Connection Specifications

Bluetooth transmitted power <9.5dBm
Bluetooth version and profiles 4.2, A2DP v1.3, AVRCP v1.5, HFP v1.6
Bluetooth transmitted frequency and power 2.402GHz - 2.48GHz, <9.5dBm
Bluetooth transmitted modulation GFSK, π/4 DQPSK, 8-DPSK
Connector Micro USB charge


Battery type rechargeable lithium-ion (3.7V 2 x 110mAH)
Battery life Up to 5 hours
Battery charge time 2 hours from empty
Charging case battery type Rechargeable Li-Ion (1500 mAh)
Click here for a complete list of all specs for this product

Spec Sheet (English)

English 488 KB
  • 1 x True Wireless Flash in-ear sport headphone
  • 1 x Protective sport charging case
  • 3 Sizes of ear tips
  • 3 Sizes of Freebit tips
  • 1 x Utility case
  • 1 x Quick start guide
  • 1 x Safety sheet
  • 1 x Warranty card
  • 12-Month MapMyFitness™ Premium membership
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