Sony MDR-IF540RK

Design: Full size
Description: Design: full-size, device type: wireless headphones, acoustic design: open, functions: volume control, operating time: 30 h
Additional Information: Battery type: own Li-Ion; Data transmission channel: infrared channel; Number of batteries: 1
Functions: Volume control
Working hours: 30 h
Charging time: 24 hours
Device type: Wireless headphones
Mount type: Headband
Maximum playback frequency: 22000 Hz
Minimum repeatable frequency: 18 Hz
Technology: Dynamic
Membrane diameter: 30 mm
Type of acoustic design: Open
Wireless connection type: Infrared channel