Envent Ultrawave+ 4.1 Home Audio Speaker Rs. 1999 4inch subwoofer driver and 3 inch speaker driver. PURE COPPER TRANSFORMER for superb sound quality. Dedicated VOLUME, BASS & TREBLE control knobs and LED panel display. USB port to play music from your pen drive of up to 16 GB capacity. You can play music from SD card as well. Slim Remote Control allows you to play music wirelessly from a distance of up to 10ft, box includes 2 AAA batteries FM Antenna for better TUNING of FM STATIONS. Stores upto 10 stations http://www.amazon.in/Envent-Ultrawave-Home-Audio-Speaker/dp/B00QRWRMH4