Neuros
Neuros Digital Audio computers are portable audio units designed for for playback and recording of audio in MP3, Ogg Vorbis and WAV formats.Neuros Audio Computers are unique for a few reasons.
First, they use a two-piece design, separating the unit into a player and a "backpack". The player unit is upgradadable by firmware upgrade from the website. The backpack has two sizes. The smaller backpacks use flash memory (128 MB) and the larger backpacks contain a 2.5" hard drive (10GB, 20GB and 40GB sizes). The advantage is that you can upgrade your backback without paying for a new player. The backpack contains both the battery and storage medium (whether it be flash memory or hard drive).
Another feature is the ability for it to broadcast on any chosen FM frequency. The range is limited to about 15 feet, but it allows transmission of the music on the Neuros to any nearby radio. This is especially useful in vehicles.
It also includes an FM radio tuner, and the ability to record directly from the radio, from the internal microphone, or from an external source via the line-in jack. Recording can be done with real-time encoding to MP3 format, or uncompressed to WAV format (the latter at 8khz, 44.1khz or 48khz sampling rates).
They have a 1/8" headphone jack, line in (for recording from any audio source), standard USB connector (the first line used USB 1.1, now backpacks are available for USB 2.0), and power-in jack for recharging.
They are supported under Windows and MacOS X, and there is some unofficial support under Linux.
They are manufactured by Digital Innovations. DI was founded in 1995 in Chicago, Illinois and made it big initially selling CD and DVD scrach repair kits.