Sony MDR-IF140K

Weight: 12.5 g
Design: Invoices
Description: Design: on-ear, device type: wireless headphones, acoustic design type: open, functions: volume control, operating time: 60 h
Additional Information: Battery type: AAA; Range: 7 m; Wireless transmitter: yes; Data transmission channel: infrared channel; Number of batteries: 1
Functions: Volume control
Working hours: 60 h
Device type: Wireless headphones
Mount type: Headband
Maximum playback frequency: 22000 Hz
Minimum repeatable frequency: 16 Hz
Technology: Dynamic
Membrane diameter: 30 mm
Type of acoustic design: Open
Wireless connection type: Infrared channel