JBL Pure Bass Sound: For over 75 years, JBL has engineered the precise, impressive sound found in big venues around the world. These headphones reproduce that same JBL DNA, punching out bass that’s both deep and powerful. Customize your experience with the JBL Headphones app: Customize your audio using the EQ. Or create your own mix of calming sounds and set your preferred timing. Select the language of voice prompts and find your headphones when you lose them. Up to 25-hour battery life with speed charge: Enjoy your music and take calls for 25 hours. Get a full 3 hours extra in just 10 minutes top up. Multi-point connection and Google Fast Pair Hands-free calls: Easily control your sound and manage calls from your headphones with the convenient three-button remote with microphone.