Enjoy surprisingly powerful, room-filling stereo sound with the JBL Flip Essential ultra-compact portable Bluetooth speaker. Powered by a rechargeable 3000mAh Li-ion battery, it delivers up to 10 hours of non-stop, high-quality playtime. The exterior is IPX7 rated, featuring a waterproof design with durable fabric. From tabletop to poolside, from sunny mornings to rainy nights, the Flip Essential is your ultimate all-purpose, all-weather companion. 10 hours of playtime Built-in rechargeable Li-ion battery supports up to 10 hours of playtime. JBL bass radiator. Dual external passive radiators deliver powerful, ear catching JBL sound that resonates loud and clear, allowing you to hear the bass, feel the bass, and see the bass. Wireless Bluetooth streaming. Wirelessly stream high-quality, room-filling sound from your smartphone or tablet. 2 internal speakers. Compatible with iPod, iPhone and iPad. Bluetooth compatible. 3.5mm AUX in. 8 watts. 2 amplifier channels. Frequency 80Hz-20000Hz. Bass reflex.