Sennheiser Set 820 S User Manual
Page 46
20
Charging time (spare battery)
approx. 10-12 h
Power supply
12 V DC via NT 820 mains unit
Weight
approx. 94 g (without battery)
Dimensions
diameter: 150 mm, height: 47 mm
Receiver
AF frequency response
40 Hz ....... 15 kHz
S/N ratio
60 dB A rms
Power supply
2.4 V via BA 151 battery
Operating time
approx. 4 hours per battery
Weight
approx. 35 g (without battery)
Dimensions
length: 95 mm, width: 63 mm, height: 35 mm
Output voltage
max. 700 mV at 32
Ω
Induction loop
AF frequency response
300 ....... 10,000 Hz
Impedance 47
Ω
Magnetic field strength
at the hearing aid
100 mA/m at 1 kHz and 10 mVA
Guarantee
2 years
Set 820 S_511981_0106_Sp7.book Seite 20 Freitag, 9. Januar 2009 8:23 08