Sony MDR-HW300K Specification Guide

Hear uncompressed audio wirelessly with the MDR-HW300K headphone 

system.  The large 40mm driver units with neodymium magnets 

deliver broad, balanced, and accurate sound for an exceptional 

wireless listening experience.  The built-in, rechargeable Lithium-Ion 

batteries provides up to 10 hours of continuous playback

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 or enjoy the 

convenience of passive mode without charging the battery using the 

included stereo connection cable. 

High quality signal and sound   

The MDR-HW300K wireless headphone system transmits an uncompressed 2.4 GHz signal to reduce unwanted interference 

while the real-time automatic channel tuning prevents signal degradation.  These features allow the system to deliver high 

quality sound without outside interference.  

Enjoy broad frequency response    

The large 40mm driver units with neodymium magnets deliver broad, balanced, and accurate sound for an exceptional 

wireless listening experience.  You can enjoy 20 - 22,000 Hz frequency response when listening wirelessly or extend the bass 

frequency response even further from 10 – 22,000 Hz when connected using the supplied audio cable.  

Long battery life 

The built-in, rechargeable Lithium-Ion battery provides up to 10 hours of continuous playback on a full charge.

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 The MDR-

HW300K headphones can even be used while charging using the included micro-USB cable, full charging capacity takes 

approximately 3 hours.

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Passive listening mode   

Enjoy the convenience of passive mode, enabling you to use the headphones in a conventional corded manner with the 

included stereo cable.  This ensures you can continue your listening without the need to charge the battery.  

Compact signal transmitter   

The MDR-HW300K includes a compact signal transmitter with power indicator and an easy to use 1/8” stereo input cable 

for your convenience.   

Designed for comfort  

The MDR-HW300K wireless headphones not only sound great, but they are also extremely comfortable and stylish thanks to 

their light-weight, adjustable padded headband and swivel style ear-cup design.  

Audio

Driver Unit

40 mm Closed/Dynamic

Effective Range

Approximately 100 feet (30 m) maximum¹

Frequency Response

10 - 22,000 Hz 

Power Handling Capacity

1000 mW (IEC: when using supplied cord)

Transmitter

2.406 GHz - 2.478 GHz

Volume Control

Yes (Button)

General

Design

Headband: Around the ear (Circum-aural)

Headband

Padded, Adjustable w/Swivel Ear-cups

Magnet

Neodymium

Plug

Detachable L-shaped stereo connecting cord

Power On/Off

ON/OFF switch on ear-cup

Type of Use

Home: Wireless & Passive w/cord

Hardware

MDR-HW300K

Features

Specifications