Headphone cord antenna
Output (headphones)
Frequency
Frequency response
20 Hz to 20,000 Hz (when playing data file, single signal measurement)
Power Source
Built-in Rechargeable lithium-ion Battery
USB power (from a computer via a USB connector of the player)
Charging Time
USB-based charging
Approx. 120 minutes
Operating temperature
5 °C to 35 °C (41 ºF to 95 ºF)
Dimensions
w/h/d, projecting parts not included
42.4 mm × 92.0 mm × 9.1 mm (1 11/16 inches × 3 5/8 inches × 3/8 inches)
w/h/d
43.2 mm × 92.3 mm × 9.6 mm (1 3/4 inches × 3 3/4 inches × 13/32 inches)
Mass
Approx. 39 g (1.4 oz)
Capacity (User available capacity)
NW-E393: 4 GB
NW-E394: 8 GB
NW-E395: 16 GB
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