Features • 2. 5'' full range driver for satellites and 4'' bass driver for subwoofer • Simple but elegant design • Bluetooth 4. 0 version audio streaming • Bluetooth range works up to 15 meters • Plug & play USB card reader • USB reader supporting MP3/WMA dual formats decoding • Uninterrupted digital FM works on PLL technology • FM storage for up to 100 stations • Full function control buttons on side panel • Fluorescence full function remote control • Wooden cabinet delivers strong and low distortion bass