JBL's Flip 4 Portable Waterproof Bluetooth Speaker is the next generation in the award-winning Flip series. This compact speaker is powered by a 3000mAh rechargeable Li-ion battery that offers 12 hours of continuous high-quality audio playtime. It also features a built-in noise- and echo-cancelling speakerphone for crystal-clear conference calls and JBL Connect+ technology that can wirelessly link more than 100 JBL Connect+-enabled speakers together to amplify the listening experience. With a simple button press you can activate and talk to Siri or Google Now from your Flip 4. Wireless Bluetooth StreamingWirelessly connect up to 2 smartphone or tablets to the speaker and take turns playing impressive stereo sound.