Sennheiser HD 4.50 BTNC Manuel Du Propriétaire
HD 4.50BTNC
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Specifications
Specifications
HD 4.50BTNC
Ear coupling
closed, circumaural
Frequency response
18 - 22,000 Hz
Transducer principle
dynamic
Sensitivity (microphone)
100 - 10,000 Hz
Sound pressure level (SPL)
113 dB (1 kHz/ 1 V
rms
)
THD (1 kHz, 100 dB)
< 0.5 %
Pick-up pattern
dual omni-directional microphones
Noise compensation
NoiseGard™ active noise cancellation
Input power
3.7 VDC, 600 mAh: built-in rechargeable
Lithium-Polymer battery
5 VDC, 400 mA: USB charging
Lithium-Polymer battery
5 VDC, 400 mA: USB charging
Operating time
19 hours (
Bluetooth and NoiseGard on)
25 hours (
Bluetooth only)
Charging time
approx. 2 hours
Weight
approx. 238 g
Battery
Lithium Polymer
Connectivity
Bluetooth version 4.0/NFC pairing
Audio cable
(optional/detachable)
(optional/detachable)
1.4 m audio cable, 3.5 mm angled plug,
gold-plated
gold-plated
Connector
USB charging cable