Sony NWZ-B183F Walkman Red plus a "B" module like

plus a "B" module like the Swift Bridge Ring

Up to 22 Hours of Playback with Case

A Perfect Fit for Form and Function

with up To 45 hours of power on a full charge

It reduces the impact of recording mistakes caused by incorrect microphone sensitivity settings and delivers crisp

Sony NWZ-B183F Walkman Red plus a "B" module likeSony NWZ B183F Walkman Red Sony Walkman MP3 player with built in USB with aluminium finish Distinctive design 4GB Storage Media of Memory Size capacity the equivalent of 900 songs Storage Media Rechargeable battery life lasts up to 20 hours, 3 minute quick charge for when you're in a hurry Bass Boost function for low end power, Crystal clear OLED display 3 minute Quick Charge What's In The Box !!! NWZ B183 Sony Headphones Quick Start Guide,