Better built for athletes.Train harder with Under Armour® Sport Wireless ¿ Engineered by JBL®. These wireless, sweat- proof headphones eliminate the distractions of headphone cables. An inline remote control with mic handles volume, tracks, and calls, and works with iOS® and AndroidTM. A premium MapMyRunTM membership lets you monitor your performance and progress. Guaranteed never to hurt or fall out, UA Sport Wireless headphones feature legendary JBL Signature Sound with Pure Bass performance to give you the inspiration and motivation to finish strong.FeaturesTwistLockTM TechnologySweat Proof and DurableJBL Signature SoundBluetooth® WirelessBetter Fit for AthletesLong Lasting BatteryMapMyRunTM Premium MembershipFeatures and BenefitsTwistLockTM TechnologyWith a proprietary design created for athletes, you¿ll enjoy the most comfortable and secure t. Just twist and lock ¿ it¿s that easy. They¿re guaranteed never to hurt or fall out.Sweat Proof and DurableDesigned with rugged and premium materials, these headphones are extensively tested by professional athletes ¿ built to withstand the most intense workouts. And they¿re IPX5 certi ed with advanced nano coating to keep sweat out.JBL Signature SoundExclusive JBL premium dynamic speaker drivers create big sound, and JBL Pure Bass performance keeps you energized.Bluetooth® WirelessEasy-to-connect Bluetooth technology delivers cable-free, zero-distraction performance.Better Fit for AthletesCreate your personalized, optimal t with three sizes of eartips and ve sizes of t adapters.Long Lasting BatteryPower a week¿s worth of workouts with up to eight hours of training per charge.MapMyRunTM Premium MembershipGet a free 12-month premium membership to MapMyRun with purchase. Track your training sessions, monitor your progress, and more.What¿s in the box:1 pair of UA Sport Wireless ¿ Engineered by JBL headphones5 sizes of t adapters (sizes 4, 5, 6, 7, and 8) and 3 pairs of ear tips (S, M, and L)1 Premium Carrying Case1 Micro USB Charging CableQuick start guideWarranty cardMapMyRunTM premium membership voucher 1 Sport clipTechnical Specifications:Speaker drivers: JBL 5.8mm dynamic Maximum volume: 113dB SPLFrequency Response: 10Hz ¿ 22kHz Bluetooth version and pro les: 4.0,A2DP v1.2, AVRCP v1.4, HFP v1.6, HSP v1.2 Bluetooth transmitter frequency and power: 2.402GHz ¿ 2.480GHz, < 4dBmBluetooth transmitter modulation: GFSK, p/4 DQPSK, 8DPSKBattery type: rechargeable lithium-ion (3.7V 2x60mAh)Battery life: up to 8 hoursBattery charge time: Less than 2 hrs Controls: three-button controllerConnector: micro USBIncluded: zippered pouch, charge cable, size 4, 5, 6, 7, and 8 t adapters, size S, M, and L eartip pairs, MapMyRun premium voucher