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

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-E393L: 4 GB

NW-E394L: 8 GB