Display

Size/resolution

1.77 inch (4.5 cm), QQVGA (128 × 160 Pixels) 65,536 colors

Panel type

TFT color display with white LED-backlight

Interface

USB

Hi-Speed USB (USB 2.0 compliant)

micro USB

Headphone

Stereo mini-jack

FM radio

FM Frequency range

87.5 MHz to 108.0 MHz

Antenna

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