The Audioengine N22 integrated amplifier is made to hook up with your iPhone and iPod, allowing you to listen to favorite songs and share them without headphones. These speakers sit on any desk, small table, or shelf without taking up a lot of space and turn a small device into a big music player. Each channel on the Audioengine N22 integrated amplifier offers 22 watts RMS and it has frequency response of 20 hertz-22 kilohertz. It is wireless-ready and streams your music wirelessly from your computer or smartphone. This amp has a very simple analog volume control, a USB port, and a detachable cord. It has one simple volume control with an integrated on/off switch and that’s it, no other knobs or switches to knock or confuse you. Not only does the Audioengine N22 integrated amplifier have great acoustics, but it is also environmentally-friendly and user-friendly. It has a power-saving idle mode to conserve energy when not in use, as well as a variable preamp output. The Audioengine N22 will give you surprisingly loud and clear sound for such a small device and will not only turn your iPhone into a stereo system, but it will just as easily connect to your desktop and laptop to do the same. There is no software required to hook it up to your PC or Mac, nothing to install, and no settings to change. Just plug it in and blast your tunes. There are two standard audio inputs for the speakers, an RCA and a mini-jack connector, so you can plug in your computer, smartphone, or audio device directly via a cable. The versatile N22 can be connected to a subwoofer too. You can also use it as a charger, connecting your audio device or smartphone through it, which is really handy if you have been blasting tunes for a while. You can also attach your headphones or earphones to the Audioengine N22 integrated amplifier for fuller audio than what comes from your tiny device. All Audioengine amplifiers share a similar voicing and tuning so that you are assured of a matched system, no matter which of the products you decide to add to your system. If you buy a pair of speakers, you’ll get the same sound out of each. It has an attractive and clever design. This Audio Engine Amplifier measures 5.5 inches deep but 7 inches high with a width of 2.75 inches. It weighs 3.55 pounds, fitting easily on your desk or in tight spaces. Its upright design also has functional benefits as well, by sitting it vertically on an integrated stand, means it is able to cool itself without the need for a fan or heatsink. The Audioengine N22 integrated amplifier gives an impressive performance for its demure size and connects to almost any modern device you have that plays music. It is an ideal desktop accessory, or to pack neatly in your bag to hook up for when you need sound on the go.