JBL Under Armour Sport Wireless Heart Rate in-ear headphones


  • In-Ear Heart Rate
  • Touch Sensor
  • Custom Coaching
  • Bluetooth® Wireless
  • JBL Signature Sound
  • Rugged Durability
  • Sweat Proof
  • Sync with UA Band
  • Long Lasting Battery
  • Three-Button Mic
  • MapMyRun™ Premium Membership
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In-Ear Heart Rate

Convenient, comfortable in-ear technology developed by experts and tested by athletes.

Touch Sensor

Hear spoken on-demand heart rate updates and optimize your endurance training session to achieve your goals – just touch the right earbud.

Custom Coaching

With UA Record™, your dashboard for connected fitness, you can view in-workout training analysis and customized heart rate feedback so you can improve performance.

Bluetooth® Wireless

Easy-to-connect Bluetooth technology delivers cable-free, zero-distraction performance.

JBL Signature Sound

Exclusive JBL premium dynamic speaker drivers create big sound, and JBL Pure Bass performance keeps you energized.

Rugged Durability

Designed with rugged and premium materials, and tested by athletes these headphones are built to withstand the most intense training sessions.

Sweat Proof

IPX5 certified with advanced nano-coating, designed to keep sweat out.

Sync with UA Band

Start your workout with UA Band and see heart rate updates on your wrist.

Long Lasting Battery

Power nearly a week’s worth of workouts with up to five hours of training per charge.

Three-Button Mic

Control volume, skip tracks, and answer phone calls without breaking stride using the inline remote control, which works with iOS® and Android™ devices.

MapMyRun™ Premium Membership

Get a free 12-month premium subscription to MapMyRun with purchase. Connect to set custom heart rate zones, track your performance, and more.


General Specifications

Headphone cable length (ft)2.56
Weight (g)16.5
Weight (oz)0.58
Bluetooth version4.1
Headphone cable length (cm)78.0

Audio Specifications

Driver size (mm)12.5
Number of drivers per ear1.0
Driver sensitivity at 1kHz/1mW (dB)100dB SPL/1mw
Impedance (ohms)32.0

Control and Connection Specifications

Bluetooth transmitter power0~4 dbm
Bluetooth frequency2.402GHz-2.48GHz
Bluetooth transmitted modulationGFSK,DQPSK, 8-DPSK


Dynamic frequency response range (Hz)20 Hz - 20 kHz
Battery TypePolymer Li-ion Battery (3.7V, 120mAh)
Charging time (hours from empty)2.0
Speed Charging time (hours)2.0
Talk time (hours)6.0
Play time (hours)6.0


JBL Pure Bass SoundYes
Flat CableYes
Aluminum finishesYes
Rechargable batteryYes
Speed chargeNo
Bulit-in MicrophoneYes
Hands Free CallYes
Siri/ Google NowNo

Additional information




Spec Sheet





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