Altec Lansing VS2621 2.1 Channel Stereo Speaker System, Price : ৳ 2,900, Product Feature Total Speakers 2:1 Connectivity Wired Subwoofer Yes Remote Control No Noise Ratio 65 dB Frequency 45 Hz - 18kHz (-10 dB) Product Warranty This product altec lansing vs2621 computer speaker comes with 1 year warranty.