Turning the acoustic signals (beeps) on and off

The acoustic signals of the headphones can be turned on or off as follows:

yTurn the headphones on.

yPress the TUNE button for 5 seconds.

yTurn the headphones off.

yIf the acoustic signals are turned on, the headphones produce a sequence of beeps at turn-off. If no beeps are produced, the acoustic signals are now turned off.

If problems occur...

yCheck if all jack plugs are connected correctly.

yMake sure that the batteries are charged.

yCheck if the batteries are inserted correctly and that the polarity is correct.

yCheck if the headphones and sound source are turned on and that the volume of the headphnes and sound source is sufficient.

yMove closer to the transmitter.

yChoose a different channel on the transmitter.

yPress the TUNE button again.

yReset the system:

Remove the rechargeable batteries from the headphones and – at the same time – interrupt the power supply of the transmitter for at least 30 seconds.

ySome electronic devices (e.g. televisions) can cause interference, which can be eliminated by increasing the distance between the transmitter and the interference source.

yTry to operate the transmitter with a different sound source.

Should the problem persist, please contact your authorized dealer for assistance.

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Sennheiser 140 manual Turning the acoustic signals beeps on and off, If problems occur

140 specifications

The Sennheiser HD 140 is a captivating entry in the world of audio equipment, tailored for both casual listeners and audio professionals who seek clarity and comfort in their listening experiences. Renowned for their quality, Sennheiser continues to push boundaries with the HD 140, equipping it with a host of features and technologies that make it stand out.

One of the main features of the HD 140 is its ergonomic design, aimed at providing maximum comfort during extended use. The headphones are lightweight, and the padded ear cups, coupled with an adjustable headband, ensure a snug yet gentle fit. This comfort is essential for audiophiles who spend hours enjoying their favorite music, podcasts, or films without experiencing discomfort.

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