Type: Active noise-cancelling

Driver: Diameter 40 mm

Frequency Response: 5–40,000 Hz

Maximum Input Power: 1,000 mW (for wired connection)

Sensitivity: 98 dB/mW (when noise-cancellation used)* 

95 dB/mW (when noise-cancellation not used)*

Impedance: 150 ohms (when noise-cancellation used)* 

35 ohms (when noise-cancellation not used)*

Battery: DC3.7 V lithium polymer rechargeable battery

Battery Life: Max. 25 hours (when Bluetooth and noise-cancellation used)** 

Max. 30 hours (when only Bluetooth used)** 

Max. 45 hours (when only noise-cancellation used)** 

Max. 1,000 hours (standby)** 

Charging Time: Approx. 5 hours (for 0-100% charge)

Weight: 250 g (8.8 oz), without cable

Cable: Detachable 1.2 m (3.9') cable

Connector 3.5 mm (1/8") stereo mini-plug, L-shaped

Accessories Included: 30 cm (1') USB charging cable, protective pouch

Type (Microphone): Condenser

Sensitivity (Microphone): -44 dB (1V/Pa at 1 kHz)

Frequency Response (Microphone): 50 – 4,000 Hz

Polar Pattern (Microphone): Omnidirectional