FeaturesBluetooth 5.0 connectivityBattery life: Up to 4 hoursAux-in / USB / Micro SD card slotTotal power output: 8 W RMS = 12 W peakBuilt-in FM radioFeel the striking power of the Volkano Mamba Portable Wireless Bluetooth Speaker in a powerful package with 12W of Peak High Power Output. Truly portable with the convenient carry handle, enjoy up to 4 Hours Playtime on the go. With multiple inputs, including USB, Aux, and even a Micro SD card, connect your music just the way you like it. The built-in FM radio just adds to the experience. Pair two Volkano Mamba Series Speakers together wirelessly to experience True Stereo Sound.SpecificationsBluetooth Version: 5.0Profiles: A2DP, AVRCPRange: 10 m / 33 ftChipset: JLDriver: 3\"Frequency Range: 100 Hz – 20 kHzSensitivity: 88 dBBattery: 1 500 mAhTotal Power Output: 8 W RMS = 12 W PeakMax. Size for USB Drive: 32 GBAux: 3.5mm Stereo JackPlaytime: 2 – 4 HoursCharge Time: 4 HoursProduct Dimensions: 287 x 112 x 127 mm 11.3 x 4.41 x 5 inBox Contents: Volkano Mamba Series Bluetooth® Speaker, Aux Cable, USB Charging Cable, Instruction Manual, Carry Handle