Sony 4GB Sports Walkman MP3 Player (NWWS413BM) - Black

Model Number: NWWS413BM
Web Code: 10423496


Get music without limits thanks to the Sony NW-WS413 4GB wearable sports MP3 player. It's sweat resistant and waterproof to a depth of 2m in fresh or salt water. Dust and temperature resistance (-5 Celsius to 45 Celsius) allows you to train in harsh weather and terrain. It includes swimming earbuds that prevent water getting into the headset.
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2 Years


  • 4GB internal storage offers plenty of space for your favourite tunes and features easy drag-and-drop file transfer from your PC or Mac
  • Rechargeable battery offers up to 12 hours of MP3 audio playback
  • Sweat resistant and waterproof to a depth of 2m in fresh and salt water
  • Includes a set of swimming earbuds that prevent water from getting inside the headset
  • Dust resistant and temperature resistant from -5 degrees Celsius to 45 degrees Celsius allows you to train in harsh environments and extreme weather conditions
  • Head-hugging design delivers a secure fit no matter what activity you're doing
  • Ambient Sound Mode lets you hear some external sound, allowing you to talk to a friend or trainer while listening to music
  • Compact, lightweight, and wireless construction offers long-lasting comfort
  • 5 playback modes, Normal, Repeat, Shuffle, Shuffle and Repeat, and Repeat 1 Song, let you customize how you listen to your music
  • Plays L-PCM, AAC, WMA, and MP3 audio files
  • Includes standard earbuds, USB charging dock, and adjustment loop


Touch-Sensitive Screen
Hold Switch


Album Cover Art Display
Upgradeable Firmware
ID3 Tag Display
Frequency Response
20 Hz - 20 kHz
AM/FM/Digital Tuner
Customisable Display
Audio Playback Modes
Normal; Repeat; Shuffle; Shuffle & Repeat; Repeat 1 Song
Video Playback Modes
Not Applicable
Picture Playback Modes
Not Applicable

File Format Support

Audio - Playback
MP3: 32-320 kbps (incl. VBR) at 32, 44.1, and 48 kHz; WMA: 32-192 kbps (incl. VBR) at 44.1 kHz (WM-DRM not supported); AAC-LC: 16-320 kbps (incl. VBR) at 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, and 48 kHz; L-PCM: 1411 kbps at 44.1 kHz
Picture - Playback
Not Applicable




Internal Storage Capacity
4 GB
Internal Storage Type


Headphone Jack
Stereo Mini-Jack
USB Port
Dock Connector
Wi-Fi Connectivity


Battery Type
Playback Time - Audio
12 h
Playback Time - Video
0 h
Charge Time
1.5 h

System Requirements

Computer Compatibility
PC and Mac

Physical Features

2 m
Dimensions - Width
5.09 cm
Dimensions - Height
7.6 cm
Dimensions - Depth
2 cm
18 g
1 x Earbud Headphones; 1 x Swimming Ear Buds
USB Cable

  • Good for swimming
    by Steph2394

    on October 5, 2019

    Great for underwater moments. Swimming with these on makes it a breeze

    Review originally posted on

  • Sony Walkman is a great product
    by sparkydog

    on September 14, 2019

    Sony Walkman is a good product. I love everything about it, it sounds great and functions very well.

    Review originally posted on

  • Great MP3 Player!
    by TexasJoe

    on August 19, 2019

    I've been using the Sony Walkman NW-WS413 for about 2 months, and so far I'm pretty happy with it. I use it when I'm running, both outside and on a treadmill. When I run long I sweat a lot, and some supposedly waterproof headphones don't last long in those conditions. So far, this Sony MP3 player has been great. The one problem I had a few weeks ago was the volume buttons seemed to stick. When I pressed louder the volume would keep increasing to max, and ditto for the pressing lower volume would decrease to no sound. Turning the player off and on didn't help. Thankfully, turning it off and charging it fixed it. It hasn't happened again, so for now I'm considering it a fluke. Overall, the problem I have with both this and any similar headphones or MP3 players is that the controls are out of sight so it can be hard to know which buttons you're pressing or for the rockers (volume) which side to press. I've seen a version of this MP3 player available in Japan that has a ring with buttons that acts as a remote control, but I haven't seen that available in the U.S. I'd find that useful and wish it were available here. So far so good, though, so I'm pretty happy with this MP3 player.

    Review originally posted on

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