Originally incorporated as Alps-Motorola, the name was changed to Alpine in 1978, after Alps repurchased Motorola's share in the company. With its headquarters located in Tokyo, Japan, Alps Electric Corporation has its central development centre in Iwaki-City, Fukushima Prefecture, Japan. The subsidiary specializing in the manufacture of Car audio and Navigation Systems, Alpine Electronics, is widely known for its high quality and equally high-priced audio systems, popularly known as 'headunits'. The product range includes a variety of speakers, amplifiers, sub-woofers and digital signal processing equipments. Mainly catering to premium vehicle brands such as Mercedes Benz, BMW, Honda, Volvo, Jaguar, and Land Rover, OEM sales formed over 80% of Alpine's yearly turnover for the year 2005. Its high performance CD player range integrates unmatched quality with unprecedented features, such as an integrated GPS navigation system and a Rear-seat DVD display unit for in-car entertainment and easy navigation. Its trademarked PulseTouch'„¢ allows for effortless control with your fingertips. The motorized 7' Active Matrix TFT monitor allows private movie screenings or navigational displays. Support for a wide variety of formats including DVD, WMA, MP3 or Audio CDs, and regular Video CDs provide multiple choices of entertainment along with CD-R/CD-RW Compatibility. With interfaces like the Alpine KCA-420i for special devices such as an iPod or a MaxTune SQ Tuner for Sirius and XM Satellite Radio Subscriptions, users easily tune-in to broadcast music. The Bass Engine Plus® Sound Tuning offers fine tuning of the Subwoofer and its lower frequencies, Bass Width Adjustments, true 4-Channel Time Correction, and MediaXpander'„¢ for realistic bass sound reproduction. Other features include a QuickSearch'„¢ Function for quick access to your favorite songs and play-lists, a 7' Fully Motorized In-Dash Monitor and a 50W x 4 High Power Amplifier. The built-in Dolby Digital /DTS Decoder (2-Channel Mix Down with DTS, Dolby Digital, and Dolby Pro Logic II support) unit with the Wow & Flutter (%WRMS): B.M.L. processing produce crystal clear surround sound with cinematic quality. Recent models feature a 5.1multi-channel surround sound including the Ai-NET module for seamless integration with amplifiers and players such as the iRiver and the iPod. Alpine's KCA-100BT! Bluetooth connectivity module offers hands-free cellular phone functionality while driving your car. You can converse on a call using the car's Alpine audio system instead of your phone. The USB interface supports popular portable MP3 players for playing back your favorite tunes.