Sony MDR-RF855RK

Weight: 285 g
Design: Full size
Description: Design: full-size, device type: wireless headphones, design features: neodymium magnets, acoustic design type: closed, functions: volume control, operating time: 28 h
Additional Information: Power indicator, automatic on / off mode when putting on headphones; possibility of work from the accumulator Ni-MH of 18 business hours, is included in the package; Battery type: AAA; Range: 100 m; Wireless front
Harmonic coefficient: 2 %
Functions: Volume control
Working hours: 28 h
Impedance: 40 ohm
Sensitivity: 98 dB
Design features: Neodymium magnets
Charging time: 7 h
Device type: Wireless headphones
Mount type: Headband
Max power: 1000 mW
Maximum playback frequency: 22000 Hz
Minimum repeatable frequency: 10 Hz
Technology: Dynamic
Membrane diameter: 40 mm
Type of acoustic design: Closed
Wireless connection type: Radio channel