Audio-Technica ATH-MSR7NC Manuel De L'utilisateur page 10

Specifications
Headphones component
Type
Driver
Output sound pressure level
Frequency response
Impedance
Input jack
Plug
Microphone component (Headphones cable for smartphones)
Type
Polar pattern
Sensitivity
Frequency response
Other
Power source
Charging time
Operating time
Weight
Operating temperature
Included accessories
* The above figures depend on operating conditions.
(For product improvement, the product is subject to modification without notice.)
10
Closed-back dynamic
45 mm
97 dB/mW (PASSIVE), 104 dB/mW (ACTIVE)
5 to 40,000 Hz
30 ohms (PASSIVE), 150 ohms (ACTIVE)
3.5 mm (1/8") stereo mini jack
3.5 mm (1/8") gold-plated stereo mini-plug, 3.5 mm (1/8") gold-plated
stereo mini-plug (4-pole / L -shaped)
Electret condenser
Omnidirectional
-40 dB (1 V/Pa, at 1 KHz)
50 to 4,000 Hz
DC 3.7 V lithium polymer battery
Approx. 4 hours*
Approx. 30 hours
Approx. 305 g (without cable)
5°C to 40°C
Detachable 1.2 m (3.9') headphones cable with 3.5 mm (1/8") gold-
plated stereo mini-plugs
Detachable 1.2 m (3.9') headphones cable for smartphones with in-line
controller/ microphone unit and 3.5 mm (1/8") gold-plated stereo mini-
plugs
USB charging cable
Pouch
Airplane adapter