Jazz Hipster Corporation is a worldwide leader in the manufacturing of audio speaker solutions for the computer and consumer electronics markets. They introduced J-9940W, a wireless 5.1 digital home theater system which features wireless rear left and right speakers that eliminate messy speaker cables. Read more... Both rear surround speakers have built-in wireless RF receivers and receive audio signals from an RF transmitter that is placed near the front/center speakers. The J9940W's amplified subwoofer contains a large 8"woofer that reproduces exceptional non-directional deep bass. Each satellite speaker houses 3" full range drivers for high performance audio. One impressive feature is its digital signal transfer of the audio that decreases interference more than ever before. Outputting 180 watts RMS of power, the J-9940W is perfectly suitable for a room approximately 15m2. For added convenience, the wireless surround speakers can hung on the wall or used with the optional satellite speaker stands allowing for more flexible placement. Easy to use, the J-9940W includes a space saving desktop control box with controls for power, volume, and bass. These controls can be adjusted via the remote control. Source: Jazz Speakers