Sony Walkman NWD-E023F Operation Manual page 81

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Additional Information
Maximum recodable number of files and folders
Maximum number of files: 2,048 files
Maximum number of folders: 1,024 folders
Total maximum number of files and folders directly under one folder: Approx. 300
Capacity (User available capacity)*
NWD-E023F: 1 GB (Approx. 968 MB = 1,015,726,080 bytes)
NWD-E025F: 2 GB (Approx. 1.89 GB = 2,035,974,144 bytes)
Available storage capacity of the player may vary.
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*
A portion of the memory is used for data management functions.
Output (headphones)
 Output
5 mW + 5 mW (16 Ω)
 Frequency response
20 to 20,000 Hz (when playing data file, single signal measurement)
FM radio
 Preset
30 presets
 FM Frequency range
87.5 to 108.0 MHz
IF (FM)
375 kHz
Antenna
Headphone cord antenna
Interface
Headphone: Stereo mini
Hi-Speed USB (USB 2.0 compliant)
Operating temperature
5 °C to 35 °C (41 °F to 95 °F)
Power source
 Built-in rechargeable lithium-ion battery
 USB power (from a computer through a USB connector of the player)
Charging time
USB-based charging
Approx. 60 minutes
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