NOCS NS2-101US NS2 Air Monitors V2 Bookshelf Speaker (Black) Nocs NS2 Air Monitors are a set of Active speakers with AirPlay technology, allowing you to stream music wirelessly from your Mac, PC, iPod touch, iPhone and iPad Hand-built rubber coated MDF cabinets, Kevlar reinforced woofers and silk dome tweeters deliver powerful sound and great durability. 3-Inch Kevlar with dual magnets, 3/4-inch silk dome tweeters and Class D amplifier with 32 bit DSP Auxiliary input lets you can connect and play music from other devices that don't utilize AirPlay Active speakers with AirPlay technology, allowing you to stream music wirelessly from your Mac, PC, iPod touch, iPhone and iPad.