Sony Walkman NWZ-S745 Operation Manual page 156

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Additional Information
Interface
Headphone: Stereo mini-jack
WM-PORT (multiple connecting terminal): 22 pins
Hi-Speed USB (USB 2.0 compliant)
Operating temperature
5 °C to 35 °C (41 ºF to 95 ºF)
Power source
 Built-in rechargeable lithium-ion battery
 USB power (from a computer via the supplied USB cable)
Charging time
USB-based charging
Approx. 3 hours (full charge), Approx. 1.5 hours (approx. 80 %)
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