Audio Pro is a premium louspeaker brand from Scandinavia. They specialize in wireless technology, and this is an extremely popular, compact, 2-way, bi-amplified, self-powered speaker system. And they are WIRELESS! An included wirelss transmitter plugs into a USB port on your laptop or computer and transmits your music with full CD-quality sound (iTunes, Windows Media, internet radio, digital music services, etc) to the built in receiver in each of the speakers. These are NOT cheap, plastic or crappy sounding. They are a great sounding speaker - wired or not - with a very small footprint, and the cabinets are wrapped in luxurious black leather. No other stereo components are required, as these speakers are self-powered with a 2 x 25w amplifier utilizing the latest DSP processing technology in each. Easily portable and ideal for a bedroom, office, beach house or college dorm where you want no compromise sound quality with the convenience of wireless technology. The included wireless transmitter can also be connected to a conventional stereo and external power supply, but most people use these with a computer or laptop as the primary music source. You can even utilize Apple Airplay and an Airport Express to play and control your iTunes library and playlists directly from your iPad, iPhone or iPod Touch. Works with both PC's and Macs. Wireless range of 150' or more. Easy plug and play setup, no wireless interference or delays. Speakers feature a 1" soft dome tweeter and 4.5" woofer. Speakers are each 8.25"h x 5.75"w x 7.5"d. Wireless transmitter and two power supplies (one for each speaker) included. Note that each speaker must plug into an AC wall outlet. System can be expanded with additional speakers. Three house codes for send/receive can be used for multi-zone systems. Audio Pro also offers an optional, matching wireless subwoofer if desired. These speakers have astounding bass all by themselves however. Wireless remote control (On/Off, mute, volume) included. Original box and packaging, owners manual. Near new condition. This speaker system sells for $1,000 new and is only available from specialty hi-fi dealers.