işte evrim işte sennheiser =MX W1

quote:

Technical Data
Receivers
Frequency response 19Hz – 20kHz
THD, total harmonic distortion <0.5% at 1 kHz with nominal output of 100 dB SPL
S/N >80 dB
Impedance 32 Ohm
Transducer principle dynamic
Sound pressure level (SPL) 115 dB
Power supply Rechargeable battery (lithium-ion button cell, user-replaceable), 3.7 V / 40 mAh
Operating time approx. 3 to 4 hrs
Charging time approx. 2 hrs (from empty battery to full charge)
Weight 10 g each
Transmitter
Radiated power <1 mW
Cable length 10 cm
Jack plug 3.5 mm stereo, angled
Power supply Rechargeable battery (lithium-ion polymer, 3.7 V / 120 mAh)
Operating time approx. 10 hrs
Charging time approx. 2 hrs (from empty battery to full charge)
Weight approx. 16g
Docking station
Battery Specification Rechargeable battery (Lithium-ion polymer, 3.7 V / 400 mAh)
Charging time approx. 2 hrs (from empty battery to full charge)
Receiver charging cycle approx. 3 times from fully charged integrated battery (On-the-move)
Weight approx. 42g
KLEER wireless transmission
Carrier frequencies 2.40~2.48 GHz
ISM Band Coexistence Dynamic Channel Selection (16 channels)
Range <10 m
Power supply Multi-country adaptor with exchangeable plug (US, EU, UK, Aust) Input : 100~240 Vac / 50~60 Hz Output : 5.0 Vdc / 0.5A, 2 x 2.5mm DC plugs