Sennheiser 250 instruction manual Specifications, General data, Headphones

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Specifications

General data

Weight without cable

approx. 285 g

Temperature range (operation)

-10 to +55 °C

Temperature range (storage)

-55 to +55 °C

Power supply for NoiseGard

2 x 1.5 V AAA size battery or

 

2 x 1.2 V AAA size rechargeable

 

battery

Cable length

1.85 m

Headphone connector

¼” (6.35 mm) jack plug

Microphone connector

5.25 mm jack plug

Additional features

NoiseGard on/off

 

TalkThrough on/off

 

TalkThrough Volume +/-

 

mono/stereo switch

 

line input

 

mobile telephone input

 

peak level protection

 

fail safe operation

Headphones

 

Transducer principle

dynamic, closed

Ear coupling

circumaural

Frequency response

 

(headphones)

8–28,000 Hz

Frequency response

 

(TalkThrough)

300–5,000 Hz

Nominal impedance passive

150 mono

 

300 stereo

Nominal impedance active

600 mono

 

1,200 stereo

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Contents Hmec Contents Important safety instructions Not in use Delivery includes Hmec 250 headset Page Operating elements TT Volume + buttonTT Volume button TalkThrough buttonLED indications Preparing the headset for use Connecting the headsetInserting the batteries Connecting a mobile telephone Connecting an additional audio player Adjusting the microphone sensitivity Switching between mono and stereo modeAdjusting the headset Using the headsetAttaching the cable clip Adjusting the volume Adjusting the volume of the TalkThrough function Switching the TalkThrough function on/offPress the TT Volume + button Switching NoiseGard on/off Replacing the batteries Folding up the headset Care and maintenance Replacing the earpadsAccessories and spare parts Replacing the wind shieldHeadphones SpecificationsGeneral data Connector assignment Microphone incl. preamplifierManufacturer declarations