Life's too short for boring Quality sound just got easier—and more fun. JBL Wave Buds 2 earbuds feature exciting JBL Pure Bass Sound, plus Active Noise Cancelling and Smart Ambient technology so you decide how much of the outside world you want to hear. Manage hands-free crisp, clear calls with just a tap on the earbuds. Use the JBL Headphones app to customize your sound and Voice Prompts language. Connect seamlessly with up to 8 Bluetooth devices and switch effortlessly from one to another. And with up to 40 hours* of playback time, they’re a great everyday sound companion. (*with ANC off)JBL Pure Bass sound JBL Wave Buds 2 earbuds feature 8mm dynamic drivers that deliver exciting JBL Pure Bass sound. Active Noise Cancelling with Smart Ambient JBL Wave Buds 2 earbuds use Active Noise Cancelling to listen to your surroundings and filter out distracting noise. Smart Ambient lets you control how much of the outside world you want to hear, so you can talk with others or stay aware of your surroundings—all without taking your earbuds out. 4 mics for crisp, clear calls Two mics on each earbud pick up and clearly transmit your voice while canceling out ambient noise. So you can make clear, crisp calls even when you're walking through a busy park on a breezy day.