"I399", the first product iLuv BluePin II feature the latest technology, offering even greater freedom of up to 300 feet With removable BluePin II, users can listen to music on headphones or Bluetooth to send stereo music from another Bluetooth device on the i399. Designed with a patented sound jAura cell technology and featuring a built-woofer in its 2.1 channel speaker system, i399 produces more authentic audio and richer sound. It also includes Speaker Phone opportunities for incoming and outgoing calls, as well as sensitive rhythm-and-blue LED light. Finishing affects include stereo FM radio capabilities digital clock display and auxiliary materials for Line 1, 2 and 3 generations of iPod and other audio devices.