JBL DEEP BASE SOUND: The sound of your last concert, for your ears only. Enjoy deep bass powered by the 8mm drivers.EITHER EAR OR BOTH: Left ear, right ear, both ears? The power of Dual Connect gives you the choice to seamlessly enjoy music or make calls with either one or bothbuds. And the battery life keeps up with you, as you can keep one earbud charging, while using the other one.HANDS FREE CALLS: Calls and sound are easily managed from the earbuds, as is the access to your device's voice assistant.COMFORT FIT: Ergonomically shaped, the JBL Vibe 100TWS fit gently in your ears even after hours of listening pleasure. The ear tips in 3 sizes ensure a perfect seal for extra comfort and sound clarity.POCKET FRIENDLY: They go where you go. Small and lightweight in and out of the case, the JBL Vibe 100TWS easily fit in your pocket.