Charging the accupack

For charging the accupack, place the headphones into the transmitter’s charging compartment (nb: make sure the headphones are inserted the correct way round. The Sennheiser logo on the headband must be readable looking from the front - see diagram.

The charging contacts are on the RH earpiece of the headphones - these are placed on the corresponding contacts in the LH indentation of

the transmitter, the one next to the “charge” light.) The red LED on the transmitter must light up to show charging is taking place.

Always store the headphones on the transmitter to ensure that they are fully charged when they are needed. The headphones are automatically switched off by the charging process.

BA 151 spare accupack

When the headphones’ accupack is going flat (noise, interference and distortion are sure signs of a flat accupack), recharge the accupack. After an initial charging of 24 hours, the normal charging time is 14 hours. A fully charged accupack has an operating time of approx. four hours.

If you wish to use your headphones for more than four hours of continuous operation, we recommend purchasing a spare accupack. Always store the spare accupack in the charging compartment at the back of the transmitter to ensure that it is fully charged when it is needed. Only use original Sennheiser accupacks – accupacks from other manufacturers may cause damage to your headphones and will invalidate the guarantee.

Additional BA 151 spare accupacks can be charged via the L 151-2 charger (available from your specialist dealer).

Before disposing of an old and exhausted accupack, make sure that it is totally discharged by using it until the device switches off. To protect the environment, only dispose of totally exhausted accupacks.

Additional information

The audio transmission technology used with this device is basically that of a radio. According to today’s scientific knowledge, the radio waves emitted by this device are not harmful to humans or animals.

ATTENTION: LISTENING AT HIGH VOLUME LEVELS FOR LONG PERIODS

CAN PERMANENTLY DAMAGE YOUR HEARING.

This device has been designed for use with stereo devices. For connection to mono devices, please use a stereo to mono jack plug available from most audio accessory shops.

Use a soft cloth or, if necessary, a damp wash-leather for cleaning the devices. Do not use aggressive cleansing agents.

English

Wireless RS 40-9

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Sennheiser RS 40 instruction manual Charging the accupack, BA 151 spare accupack, Additional information
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RS 40 specifications

The Sennheiser RS 40 is a remarkable wireless headphone system that provides an unmatched listening experience for audiophiles and casual listeners alike. Known for its solid build quality and advanced technology, the RS 40 is tailored for those seeking high-quality sound without the constraints of wires.

One of the standout features of the RS 40 is its impressive sound performance. This model utilizes high-quality transducers designed to deliver rich, detailed sound with a wide frequency response. This ensures that users can enjoy deep bass, clear mids, and crisp highs, making it an ideal choice for listening to music, watching movies, or playing video games. The RS 40 is well-suited to both low and high volume levels, allowing users to enjoy their audio content without distortion.

The RS 40 employs advanced RF transmission technology which allows for a robust wireless connection. This technology enables users to experience high-quality audio without the limitations of traditional cables. With a range of up to 100 meters, users can move freely throughout their home without losing connection. This is particularly beneficial for those who want to listen to audio from different rooms or while multitasking.

Battery life is another notable characteristic of the RS 40. The headphones come with rechargeable batteries that offer a long playtime, ensuring that users can enjoy their favorite content for extended periods without needing frequent recharges. The convenient charging dock means that when the headphones are not in use, they can be easily docked to ensure they are always ready for action.

Comfort is also a key consideration with the RS 40. The headset features plush ear cushions and an adjustable headband, providing a personalized fit that enhances comfort during long listening sessions. This thoughtful design means that users can enjoy hours of audio without discomfort.

In summary, the Sennheiser RS 40 is a well-rounded wireless headphone system that combines excellent sound quality, advanced RF transmission, long battery life, and comfort. It is a perfect choice for anyone seeking a high-quality, flexible listening solution that doesn't compromise on audio performance. Whether you are a music lover, gamer, or movie enthusiast, the RS 40 is designed to enhance your audio experience.
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