Sony MDR-IF140 Specification Guide

Design and Specifications subject to change without notice.

Modulation system 

Frequency modulation

Carrier frequency 

Right 2.8 MHz
Left 2.3 MHz

Frequency response

18-22,000 Hz

Power source

DC 1.5 V (size AAA) dry battery

Mass

Approx. 125 g (4.41 oz.) including battery

• Built-in infra-red (IR) wireless receiver

• 30mm dome-type drive units for deep bass

   and accurate sound

• Lightweight (4 oz.) open-air design

• Up to 60 hours of battery life with AAA alkaline battery

• Compatible with Sony Mobile monitors

    w/IR headphone transmitter

• Wide single headband with self-adjusting mechanism

• Powered by single AAA battery (not included)

(Minimum) 140 mm  (5 1/2”)

62 mm(2 3/8”)

(Diameter)

Fuse (10A)

BUS Control IN

Operating instructions (1)

(Minimum)

155 mm   (6 1/2”)

(Maximum)

230 mm   (8”)