JBL Flip 4 is a portable waterproof Bluetooth speaker that delivers a powerful stereo sound. This compact speaker is powered by a rechargeable Li-ion battery that offers 12 hours of continuous, high-quality audio playtime. Connect+ technology can wirelessly links to more than 100 JBL Connect+ enabled speakers and with a simple button press you can activate a talk to Siri or Google Now from your JBL Flip 4. High performance wireless Bluetooth streaming speaker with rechargeable battery and 12 hours playtime. JBL Connect+ - Link more than 100 JBL Connect+ enabled speakers together to amplify the party; IPX7 Waterproof - No more worrying about rain or spills; you can even submerge the Flip 4 in water. 2 speakers. Bluetooth compatible. 3.5mm AUX in. 16 watts. 2 amplifier channels. Frequency 70Hz-20000Hz. General information Model number: JBLFLIP4BLU. Size H6.8, W17.5, D7cm. Speaker diameter 4cm. Power from USB. Batteries required 1 x Li-Ion batteries (included). Battery life: 12 hours. (included). Manufacturers 2 year guarantee.