Captain Bluetooth Speakers Portable - The Best Wireless Bluetooth Speaker (High Definition Audio, Built-in Microphone, FM Radio, 2x3.5W Acoustic Drivers, 12 Hours Playtime) New Bluetooth V3.0, Can be easily Connected up to 35 feet(10 meters) from any Bluetooth-enabled device such as your smartphone, notebook or tablet, Equipped with a 3.5mm audio jack for non-Bluetooth devices Premium Sound with Bass Enhance Technology with self boosting amplifier IC. Powerful 52mm diameter speakers and Enhanced Bass Resonator deliver crisp clean sound with deep bass Built-in microphone for hands-free calls and phone call back, Built-in high capacity Li battery for up to 5 hours of playtime Fashion design with LED display, Built in high quality FM radio, Support TF card/Micro SD card and USB input Transparent Acrylic enclosure make it look special and beautiful. The battery guarantees you with 8+ hours of ultimate joy