JBL | True Wireless Flash X In-Ear Sport Headphones – Engineered by JBL

Wireless freedom to push yourself further

UA True Wireless Flash X offers a cable-free truly wireless experience to push athletes to perform their best. UA waterproof technology allows training in all conditions, and Sport Flex Fit ear tips provide a comfortable yet snug fit that provides Passive Noise Cancellation for superior focus. JBL Charged Sound was tuned to maximize motivation, and Bionic Hearing features TalkThru Technology to quickly interact with your workout partner, and Ambient Aware Technology to hear your surroundings for increased safety. With up to 50 hours of battery life and a durable aluminium charging case, these headphones help you break the limits.


In stock

In stock


UA True Wireless Flash X UA True Wireless Flash X UA True Wireless Flash X UA True Wireless Flash X UA True Wireless Flash X

General Specifications

  • Power supply: 5 V 1,5 A
  • Maximum operation temperature: 45°C

Audio Specifications

  • Dynamic frequency response range: 20 – 22 kHz
  • Sensitivity: 96 dB@ 1kHz/1mW
  • Maximum SPL: 96 dB
  • Microphone sensitivity: -25 dBV @ 1 kHz / Pa
  • Impedance: 14 ohm


  • Driver size: 5.8 mm
  • Weight: 117 g

Control and Connection Specifications

  • Bluetooth transmitted power: <8.5 dBm
  • Bluetooth transmitter modulation: GFSK, π/4DQPSK, 8DPSK
  • Bluetooth frequency: 2.400 GHz – 2.4835 GHz
  • Bluetooth profiles: A2DP V1.3, AVRCP V1.6, HFP V1.7
  • Bluetooth version: V5.0


  • Battery type: Polymer Li-ion Battery (3.7 V, 120 mAh)
  • Charging time: 2 hours
  • Charging case battery: 1500 mA
  • Music play time with BT on: Up to 10 hours
  • Talk time with BT on: Up to 10 hours

What’s in the box?

  • 1X UA True Wireless Flash X Headphone
  • 3X Ear Tips
  • 3X Sport Flex Fit Ear Fins
  • 1X Charging Case
  • 1X USB Type-C Cable
  • 1X QSG/Safety Sheet/Warranty Card/Warning Sheet