1.888.955.6000

Home / Headphones & Wireless Audio / Headphones / Wireless Bluetooth Headphones / Under Armour® Sport Wireless Flex — Engineered by JBL

Free Shipping on all orders
$35 and up

We offer standard delivery in 2 business days or less.

Estimated standard delivery time to the U.S. and Puerto Rico

Details

Delivery time estimates do not apply to large or heavy items that require special shipping (including most TVs), items shipped directly from the manufacturer, or out-of-stock items. Some items that ship from the manufacturer can only be delivered to addresses within the 48 contiguous states.

Delivery time for standard shipping to any of the 48 contiguous U.S. states is 1-2 business days. Delivery time for standard shipping to Alaska, Hawaii, and Puerto Rico is 3 business days. Saturday, Sunday and national holidays are not considered business days for delivery purposes.

Estimated standard delivery time to the U.S. and Puerto Rico

Under Armour® Sport Wireless Flex — Engineered by JBL

Bluetooth® neckband sports headphones

1 Review

Under Armour® Sport Wireless Flex — Engineered by JBL - Front

Under Armour® Sport Wireless Flex — Engineered by JBL - Shown with wingless ear tips

Under Armour® Sport Wireless Flex — Engineered by JBL - Adjustable neckband can be worn tight for workouts

Under Armour® Sport Wireless Flex — Engineered by JBL - Adjustable neckband can be worn looser for everyday listening

Under Armour® Sport Wireless Flex — Engineered by JBL - Magnetic earbuds for convenient portability

Under Armour® Sport Wireless Flex — Engineered by JBL - Shown with winged ear tip enhancers

Under Armour® Sport Wireless Flex — Engineered by JBL - Includes 3 sizes of ear tips and charging cable

Under Armour® Sport Wireless Flex — Engineered by JBL - Neckband charging port detail

Under Armour® Sport Wireless Flex — Engineered by JBL - Flexible neckband detail

Under Armour® Sport Wireless Flex — Engineered by JBL - Neckband detail

Under Armour® Sport Wireless Flex — Engineered by JBL - In packaging

California customers:
Please click here for your Proposition 65 warning.

Item # 109UAFLEX | MFR # UAJBLNBGRY

Out of Stock

Expected: 12/14/2018 Reserve yours risk-free Email me when available

1 Review | Ask a question

Ships FREE

$129.99 Earn up to 130 Rewards points

Add to Cart

Add to wishlist

Special financing offers

Ask an expert

Our VirginiaVA-based experts can help.

1.888.955.6000

Live Chat

Overview

Our take on the Under Armour® Sport Wireless Flex — Engineered by JBL by Crutchfield's James Ralston

Okay, I admit it: I've fallen out of my exercise routine in recent months. I'm not proud of it. But maybe all I need to get back into the groove is a great set of sports headphones — like this pair from Under Armour and JBL.

Inspiration for perspiration

For starters, they connect wirelessly to your phone, so there's no cord to get in the way when you move around. And the flexible neckband can be adjusted to fit tightly or loosely, for a comfortable fit during or after your workout.

Safety first

One of my favorite features of these headphones is the brilliant white LED built into the neckband. It comes with three different flashing patterns to help you stay visible to passing motorists during your outdoor workouts.

A comfortable fit

Three different sizes of ear tips are included, to help you get a secure and comfortable fit. With in-ears like these, a tight seal helps you get the best possible sound, especially when it comes to the bass. The earbuds can be worn with or without winged attachments, depending on what feels best to you. And when it's time for a break, the magnetic earbuds clasp together around your neck for convenient storage.

Product Highlights:

Bluetooth 4.1 wireless connectivity for phone calls and music playback
8.6mm dynamic driver in each earpiece
winged and wingless ear tip enhancers help you get a secure, comfortable fit
- includes three different sizes of ear tips
RunSafe™ brilliant white LED with three flashing modes to boost your visibility for safer runs
magnetic earbuds for convenient storage and portability
sweat-proof earpieces, neckband, and cable (IPX5-rated water-resistant)
four-button controls built into neckband
- built-in microphone for answering calls via Bluetooth
built-in rechargeable battery offers up to 11 hours of listening (USB charging cable included)
- get an hour's worth of playback on a 5-minute charge
free 12-month premium membership to Under Armour's MapMyRun app for Apple® or Android™
frequency response: 10-22,000 Hz
warranty: 1 year
Our 60-day money-back guarantee

What's in the Box:

Under Armour® Sport Wireless Flex — Engineered by JBL Owner's manual

Neckband in-ear wireless headphones
11" USB charging cable (Type A USB on one end and Micro-B 2.0 on other end)
3 Pairs of Sport Flex ear tips (1 pair installed)
2 Pairs of Enhancers (1 pair installed)
Quick Start Guide
Warranty Card
Warning sheet
UA MapMyRun promo

Average Review:

(1) Review

See all reviews Write a review

Minor things like too small of buttons for gloved use but this is great headset. I've had problems with other brands not being durable so I hope these last longer.

John, Knoxville, TN

Why Shop With Us?10 Reasons.

Reason #6

In-depth vehicle research

(The world's largest car fit database)

See all 10 reasons

Reviews

Under Armour® Sport Wireless Flex — Engineered by JBL Reviews

Average Customer Review(s):

(1 Review)

Great headphones

John from Knoxville, TN on 9/17/2018

Crutchfield Customer Review (What's this?)

Minor things like too small of buttons for gloved use but this is great headset. I've had problems with other brands not being durable so I hope these last longer.

Pros: Seems durable, great sound.

Cons: None

0 of 0 found this helpful

Details

Hands-on research

Features and specs chart | In-depth notes

Features and Specs

General
Fit Style	In-ear/Earbud
Earcup Type	---
Earcup Width x Height	0.502" x 0.502:
Noise-canceling	No
Mic For Taking Calls	Yes
iPhone Control	Yes
Lightning Connector	No
Android Control	Yes
Frequency Response	10-22k Hz
Sensitivity	N/A dB
Impedance	N/A
Weight	1.4 ounces
Cord Length	7" ea side
1/4-inch Adapter Included	No
Storage	No
Charging Case	No
Volume Control	Yes
Parts Warranty	1 Year
Labor Warranty	1 Year

Product Research

Features

Overview: The Under Armour Sport Wireless Flex neckband in-ear headphones by JBL feature adjustable Flex Zones to stay in place during your activity, or loosen while you relax. The UA Sport flex headphones feature Bluetooth wireless technology, and are sweat resistant. They also have bright white LEDs to increase your visibility after dark.

Flex Zones: The UA Sport Flex neckband rests comfortably around your neck. The ear buds are attached to separate 7" cables at each end of the neckband. The ear buds are magnetic, and can be fastened together when not in use. In the normal position, the neckband gives you a relaxed fit for all day comfort. During rigorous activities, you can bend the two Flex Zones inward for a more secure fit that stays in place.

Note: The neckband Flex Zones do not bend outward.

RunSafe: The neckband is equipped with bright white RunSafe LEDs along the back. These LEDs increase your visibility at night to keep you safe. The thin light strip is approximately 5-1/2" in length with an LED at each end. There are three different light modes to choose from via the on-board controls.

Bluetooth: The wireless headphones feature Bluetooth 4.1 with the following profiles: HFP (v1.6), HSP (v1.2), A2DP (v1.2), and AVRCP (v1.5).

Drivers: The UA Sport Flex in-ear headphones are equipped with JBL 8.6mm dynamic drivers for delivering a bold JBL Charged Sound over a wide frequency response (10Hz-22kHz). The headphones are tuned for action sports with a rich bass response to move you during your workout.

Sport Flex Ear Tips: The Under Armour Sport Flex in-ear headphones come with three pairs of ear tips and two pairs of winged "enhancers." These Sport Flex silicone ear tips come in small, medium, and large. The enhancers, which come in Size 3 and Size 5, are designed to twist and tuck behind the folds of your outer ear to hold the ear tips in place, even during rigorous exercise.

Controls: The controls for the headphones are located on the ends of the neckband. Controls include: volume up/down, track up/down, play/pause, and power/pair. A multi-function button controls the RunSafe LEDs, mic mute (during calls), and Siri/Google Now.

Battery: The UA Sport Flex wireless headphones are powered by a Lithium-Ion cylindrical cell battery (3.7V, 2 x 100mAh). The battery fully charges (from empty) in approximately 2 hours, and gives you over 11 hours of battery life. A quick 5-minute Speed Charge provides approximately 1 hour of playback time. A Micro-B USB charging cable is included.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Accessories

Q & A