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 radioWith 12W of peak power in a compact small package, the Volkano Mini Mamba Portable Wireless Bluetooth Speaker comes with a with a powerful bite! True portability on the go with up to 4 hours playtime as well as USB, Aux, and Play your music from a Micro SD Card with the built-in card readers, keep the tunes going wherever you are. The built-in FM radio is there for when you need to jam out to your favourite DJ station. The Mini Mamba also supports True Wireless – pair two Volkano Mini Mamba Series Speakers together wirelessly to experience True Stereo Sound.SpecificationsBluetooth Version: 5.0Profiles: A2DP, AVRCPRange: 10 m / 33 ftChipset: JLDriver: 2.5\"Battery: 1 500 mAhSignal to Noise Ratio: 65 dBTotal Power Output: 8 W RMS = 12 W PeakMax. Size for USB Drive: 32 GBAux: 3.5 mm Stereo JackPlaytime: 2 – 4 HoursCharge Time: 4 HoursImpedance: 4 OhmBox Contents: Speaker, Aux Cable, USB Charging Cable, Instruction Manual, Lanyard