Type: Active noise-cancelling
Driver Diameter: 40 mm
Frequency Response: 20 to 20,000 Hz
Maximum Input Power: 40 mW
Sensitivity: 96 dB/mW (When noise-cancellation used)
95 dB/mW: (When noise-cancellation not used)
Impedance: 32 ohms
Battery: DC 3.7 V lithium polymer battery
Battery Life: Max. approx. 20 hours (when Bluetooth® and noise-cancellation used)
Max. approx. 42 hours (when only noise-cancellation used)
Weight: Approx. 180 g (6.3 oz)
Accessories Included: USB charging cable (30 cm (12“), USB Type-A/Micro USB Type-B)
Cable (1.2 m (3.9’) / 3.5 mm (1/8”) gold-plated stereo mini-plug, L-shaped)
Microphone Type: Electret condenser
Microphone Polar Pattern: Omnidirectional
Microphone Frequency Response: 50 to 4,000 Hz
Microphone Sensitivity: -36 dB (1 V/Pa, at 1 kHz)
Charging Time: Approx. 4 hours
Operating Temperature: 5°C to 40°C (41°F to 104°F)