Model: Sony NWZ-WS613 4GB
Bluetooth Sports Wearable and Wire-free with Sports MP3 Player,

Be active, be free...Listen, talk and seamlessly control this wire-free, one-piece music player. A waterproof2 design keeps moisture out while you enjoy good

• Wearable and Wire-free
  This one-piece music player's unique design is lightweight, ideal for sports and active lifestyles. It allows you to be wire-free, hands-free, and without distraction whether you're working out at the gym, playing outdoors or even swimming

• Audio
  
  • Audio Modes : 5-band EQ/Clear Phase/Dynamic Normalizer
  • Audio Power Output : 5 + 5mW
  • Frequency Response : 20 to 20,000 Hz (when playing data file, single signal measurement)

• Audio Features
  • Play Mode : All Play / Shuffle / Playlist

• Bluetooth Feature &Device Bluetooth Audio
  • Audio Codec : SBC, AAC, and aptX codecs

• Hardware
  • Headphone Type : EX headphones with closed, dynamic 13.5mm dome driver
  • System Requirements : IBM PC/AT compatible computer preinstalled with the following Windows operating systems
    • Windows® XP(Service Pack 3 or later)
    • Windows Vista® (Service Pack 2 or later)
    • Windows® 7 (Service Pack 1 or later)
    • Windows® 8
    • Mac OS X v10.6 or later
    • Not supported by OSs other than above
  • Interface : Hi-Speed USB (USB 2.0 compliant)

• Inputs and Outputs
  • Digital Audio Input(s) : Requires USB cradle
  • USB Port(s) : High-speed USB 2.0 compliant

• Memory
  • Memory Size : 4 GB

• Power
  • Power Type : Built-in Rechargeable Li-ion Battery
  • Battery Life (Approx) :
    MP3 @ 128 kbps = 8 Hrs.;
    Linear PCM @ 1411 kbps = 7 Hrs.;
    Headphone Mode = 4 Hrs.
  • Battery Indicator : LED Battery Life Indicator (Green/Orange/Red)
  • Battery Charging (Approx) : USB-based:
    1.5 Hrs (full charge)1
    3 Minutes (approx. 60 minutes playback)1
  • Battery Capacity : Remote Commander: CR1620 Lithium Coin Cell Battery Approx. 18 months (2 hours usage every day)
• Weights and Measurements
  • Weight (Approx.) : 237 g (8.4 oz)

• Wireless Connectivity
  • Frequency Band : Bluetooth spec 4.0 2.4 GHz band (2.4000 GHz-2.4835 GHz)
  • Modulation Method : FHSS
  • Maximum Range : Line of sight approx.30 ft (10 m)