JBL Flip 4 Portable Bluetooth Speaker works on a powerful 3000mAh Lithium Ion battery. The JBL Flip 4 Speaker sports a beautiful blue finish.Going for a night out? Carry the JBL JBLFLIP4BLUAM Flip 4 Waterproof Portable Bluetooth Speaker that delivers an amazing sound quality. This compact and lightweight speaker will cover a small space in your bag pack. This portable speaker is powered by a rechargeable 3000mAh Lithium Ion battery that provides approx. 12 hours of continuous audio playtime. Featuring a built in noise and echo canceling speakerphone, this wireless speaker allows you to make crystal clear calls without reaching out to your device. Enjoy an amplified listening experience with this speaker as it supports the JBL Connect Plus technology that allows you to link more than 100 Connect Plus enabled speakers together. It also has voice assist integration that lets you connect to Siri or Google Now with a simple button press. This Bluetooth speaker is waterproof and can withstand spills and splashes. Available in a bold blue finish, this JBL Flip 4 Bluetooth Speaker delivers a high fidelity sound with its Bass Radiator.