Display

Size/resolution

0.9-inch (2.26 cm) 128 x 36 Pixels

Panel type

OLED

Interface

USB

Hi-Speed USB (USB 2.0 compliant)

Headphone

Stereo mini-jack

FM radio

FM Frequency range

87.5 MHz to 108.0 MHz

Antenna

Headphone cord antenna

Output (headphones)

Frequency response

20 Hz to 20,000 Hz (when playing data file, single signal measurement)

Sound Effects

5 Band equalizer (None/Heavy/Pop/Jazz/Unique/Custom) & Bass Boost

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. 70 minutes

Operating temperature

5 °C to 35 °C (41 ºF to 95 ºF)

Dimensions

w/h/d, projecting parts not included

84.5　mm x 22.2　mm x 13.4　mm (3 3/8 inches x 7/8 inches x 17/32 inches)

w/h/d

84.8　mm x 23.6　mm x 15.3　mm (3 3/8 inches x 15/16 inches x 8/15 inches)

Mass

30 g (1.1 oz)

Capacity (User available capacity) (*1)

NWZ-B183: 4 GB

NWZ-B183F: 4 GB

^(*1) Available capacity may vary. A portion of the memory is used for data management functions.