Headphones Type Closed-back Dynamic Driver Diameter : 40 mm Frequency Response : 5 – 35,000 Hz Sensitivity : 99 dB/mW Impedance : 32 ohms Battery : DC 3.7V lithium polymer battery Battery Life : Max. approx. 70 hours* Weight : 193 g (6.8 oz) Weight (microphone) : Omnidirectional Charging Time : Approx. 4 hours* Operating Temperature : 5°C to 40°C (41° F to 104°F) Microphone Type : Condenser Microphone Sensitivity -44 dB (1 V/Pa, at 1 kHz) Microphone Frequency Response 100 - 10,000 Hz Microphone Polar Pattern : Omnidirectional
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