Sony MDR-DS4000

Weight: 300 g
Design: Full size
Description: Design: full size, device type: wireless headphones, functions: surround sound, volume control, operating time: 13 h
Additional Information: Range: 7 m; Digital signal transmission: yes; Wireless transmitter: yes; Data transmission channel: infrared channel
Harmonic coefficient: 1 %
Functions: Surround sound, volume control
Working hours: 1.3 h
Device type: Wireless headphones
Mount type: Headband
Maximum playback frequency: 22000 Hz
Minimum repeatable frequency: 10 Hz
Technology: Dynamic
Membrane diameter: 40 mm
Wireless connection type: Infrared channel