Beyerdynamic Iris TS Mk II Notice D'utilisation page 56

IRIS – Technical Specifications
56
Nominal frequency deviation . . . . . . . . . ± 6 kHz
Peak deviation . . . . . . . . . . . . . . . . . . . . ± 8 kHz
De-emphasis. . . . . . . . . . . . . . . . . . . . . . 150 ms
Signal/noise ratio . . . . . . . . . . . . . . . . . . > 80 dBA
Supply voltage . . . . . . . . . . . . . . . . . . . . 3.7 to 4.2 V, nominal 3 V
Power consumption
Normal (at 3 V) . . . . . . . . . . . . . . . . . . . . 50 mA (32 Ohm headphones)
Headphones not connected . . . . . . . . . . 0 mA
Operating time
Battery operation . . . . . . . . . . . . . . . . . . 10 hours
Dimensions (H x W x D) . . . . . . . . . . . . . 156 x 56 x 18 mm
Weight (incl. batteries) . . . . . . . . . . . . . . 150 g
Colour . . . . . . . . . . . . . . . . . . . . . . . . . . Grey
Note:
The Iris TS Mk II transmitter and the Iris RP-8/16 Mk II receivers are compliant to the IEC 6103-7.