http://www.ebay.com/i/JBL-Under-Armour-Sport-Heart-Rate-Wireless-In-Ear-Headphones-Black-/322340026952
JBL

JBL Under Armour Sport Heart Rate Wireless In-Ear Headphones Black

Regular price $149.99 Sale price $199.99




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Description

New - Maximum Frequency Response: 22 kilohertz. The ergonomic ear tips twist into your ear and stay in place with TwistLock technology without causing discomfort. Under Armour Sport Wireless Heart Rate. Minimum Frequency Response: 10 hertz.