Features: - Portable Boombox Style Bluetooth Speaker with Sturdy Carry Handle - 2 x 7.5W Speaker Output is powerful enough to really get into the groove of your tunes. - Large LCD Front Display gives you all of the status information. - Rugged, Rubberized Finish for extra durability and reliability. - Passive Woofers for Extra Deep Bass Get blown away by the explosive bass and scorching sound of the Volkano X Supersonic Series Bluetooth speaker. The Supersonic features two tweeters for crystal clear treble and two subwoofers, backed up by two more passive woofers, for deep, booming bass. Enjoy clear sound with the built-in equalizer and even take calls with the integrated microphone. Connect your favorite music player with Bluetooth or aux, or plug in a USB drive or Micro SD Card for instant playback. Specifications: - Bluetooth Wireless: V4.2 - Bluetooth Range: 10m - Battery: 1500mA.h rechargeable Li-Ion - Playback Time: 3 - 4 Hours - Charge Time: 3 Hours - Main Driver: 4", 12W, 4 - Frequency Response: 100Hz - 20kHz - Signal-to-Noise Ratio: 60dB What's in the box Speaker