Never Hurts and Never Fall Out Results matter and when you have the perfect headphones there’s nothing standing in-between you and your workout. Streaming wirelessly, the JBL Endurance Run 2 wireless will get you the motivation you need to push harder with powerful JBL sound. With their FlipHook™ design, they adapt to an in-ear or behind-the-ear fit for added convenience. A comfortable combination of FlexSoft™ ear tips and TwistLock™ technology means these buds are guaranteed never to hurt or fall out. Thanks to IPX5 waterproof, JBL Endurance Run 2 wireless headphones keep up with your every step so sweat or rain will not ruin your workout. With a playback of 10 hours, the JBL Endurance Run 2 wireless feature an in-line microphone and remote for handsfree control of sound and calls. The magnetic buds secure your JBL Endurance Run 2 wireless conveniently around your neck while not in use. Enjoy your workout! General Specifications Driver size (mm) 8 Number of Microphones 1 Audio Specifications Driver sensitivity at 1kHz/1mW (dB) 99 Dynamic frequency response range (Hz) 20Hz-20kHz Impedance (ohms) 16 Dimensions Earpiece Weight (oz) 0.70 Earpiece Weight (g) 19.7 Features Remote control in cable Water Resistant Waterproof IP Code IPX5 Charging cable Voice Assistant integration Built-in Microphone Hands Free Call JBL Pure Bass Sound Twistlock Wireless Rechargable battery Bluetooth What's in the box? 1 x Endurance Run 2 wireless 3 x Sizes of ear tips 1 x Enhancer 1 x USC-C Charging Cable 1 x Warranty/Warning (W / !) 1 x Quick Start Guide/Safety Sheet (S / i)