Sennheiser MM 400 Instructions for Use - Page 25

Specifications Specifications Transducer principle Ear coupling Frequency response Nominal impedance active/passive Sound pressure level at 1 kHz and 1 Volt THD at 1 kHz Audio connection Cable length Audio cable Charging cable Weight BA 370 PX battery pack Charging time Operating time Operating temperature range Storage temperature range Passive noise attenuation PSC 03R-050 mains unit Nominal input voltage Nominal input current Mains frequency Nominal output voltage Nominal output current Operating temperature range Storage temperature range Relative humidity Weight Bluetooth Bluetooth® Range Transmission frequency Transmission power Protocoles Codec dynamic, closed supra-aural 15-22,000 Hz 590/100 Ω 107 dB SPL < 0.1% 3.5 mm stereo jack socket 1.4 m 0.8 m 105 g 3.7 V; 250 mAh Lithium-Polymer 3 hrs 10 hrs 0°C to +40°C -10°C to +70°C 25 dB 110-240 V~ max. 0.2 A 50-60 Hz 5 V max. 0.5 A 0°C to +45°C −40°C to +85°C 20 to 90% approx. 61 g version 2.1 + EDR up to 10 m 2.4 GHz 8 dBm HSP, HFP, A2DP, AVRCP SBC 24