An as-yet unannounced Sony Walkman MP3 player has popped up for pre-order on UK online retailer

The device adds a 4GB version to Sony’s recently launched NW series of Sports Walkman. The NWS706 is a tiny DAP that features noise-cancelling technology for use on busy streets or noisy gyms.

Specs are slim, but include a 3-line colour display, a quick-charge function, and a battery that feeds a whopping 50 hours of playback time. Unlike many other MP3 players, this one includes a FM tuner as well as line-in recording.

And the price? A relatively-low £179.99, although says that the device is still unavailable.

The previous maximum capacity of any of the NW series was 1GB, so in one fell swoop Sony has quadrupled its performance.