Audio Technica ATH-ANC9 QuietPoint Noise-Cancelling Headphones

Detailed Product Specification of Audio Technica ATH-ANC9 QuietPoint Noise-Cancelling Headphones
TYPEActive noise-cancelling
DRIVER DIAMETER40 mm
FREQUENCY RESPONSE10 - 25,000 Hz
QUIETPOINT® ACTIVE NOISE REDUCTIONMode 1: Up to 30 dB 
 Mode 2: Up to 30 dB 
 Mode 3: Up to 20 dB
SENSITIVITY100 dB
IMPEDANCE100 ohms
BATTERYAAA
BATTERY LIFEUp to 35 Hours (Lithium), 
 Up to 25 Hours (Alkaline), 
 Up to 20 Hours (Rechargeable)**
WEIGHT220 g (7.8 oz), without cable and battery
CABLEDetachable 1.2 m (3.9') cable with 3.5 mm (1/8") stereo mini-plugs; 
 Detachable 1.2 m (3.9') cable with inline control/ microphone and 3.5 mm (1/8") stereo mini-plugs
CONNECTOR3.5 mm (1/8")