Sennheiser HDI 830

Weight: 68 g
Design: Intracanal
Description: Design: in-ear, device type: wireless headphones, functions: volume control, operating time: 12 h
Additional Information: Battery type: own Li-Ion; Transmitter frequency range: 2.3MHz, 2.8MHz; Data transmission channel: infrared channel; Replaceable ear pads: yes
Harmonic coefficient: 1 %
Functions: Volume control
Working hours: 12 o'clock
Battery capacity: 170 mAh
Sensitivity: 125 dB
Device type: Wireless headphones
Mount type: Without attachment
Maximum playback frequency: 16000 Hz
Minimum repeatable frequency: 50 Hz
Technology: Dynamic
Wireless connection type: Infrared channel
Number of drivers: 1