Type: Closed Dynamic|Driver: 40mm CCAW Voice Coil|Level of sensitivity: 102dB/mW|Frequency Response: 5-24,000 Hz|Impedance: 40ohms|Cord: 0.5 m OFC Litz, 1.5 m OFC Litz, 1.5 m with battery case|Plug: 0.5 m gold-plated stereo mini, 1.5 m Gold-plated L-shape stereo mini|Power: built-in lithium ion battery (lasts up to 15hours)/ 2 x AAA battery (lasts up leading 10 hours)/ AC adapter|Weight: 225g (w/o cord).
Digital Noise cancelling Headphones | Reduces ambient noise up tp 99%
3 AI (Artificial Intelligence) noise Cancelling Mode | MODE A: Airplane, MODE B: Train or Bus MODE C: OFFICE
40mm Driver Units produce powerful sound
Built in lithium ion battery: chargeable with supplied AC adapter (100-240V)
Accessories: AC adapter, plug adapter for airplane, carrying case, plug adapter, detachable cords (1.5m x 1, 0.5m x 1)