Important safety instructions
▷Read this instruction manual carefully and completely before using the product.
▷Always include this instruction manual when passing the product on to third parties.
▷Do not use the product if it is obviously defective or makes loud, unusual (whistling or beeping) noise.
▷Only use the product in environments where Bluetooth® wireless transmission is permitted.
Preventing damage to health and accidents
▷Protect your hearing from high volume levels. Permanent hearing damage may occur when headphones are used at high volume levels for long periods of time. Sennheiser headphones sound exceptionally good at low and medium volume levels.
▷The product generates stronger permanent magnetic fields that could cause interference with cardiac pacemakers, implanted defibrillators (ICDs) and other implants. Always maintain a distance of at least 3.94"/10 cm between the product component containing the magnet and the cardiac pacemaker, implanted defibrillator, or other implant.
▷Keep the product, accessories and packaging parts out of reach of children and pets to prevent accidents. Swallowing and choking hazard.
▷Do not use the product in an environment that requires your special attention (e.g. in traffic or when performing skilled jobs). Especially the product’s active noise cancellation can make ambient noise inaudible or drastically change the perception of acoustic warning signals.
Preventing damage to the product and malfunctions
▷Always keep the product dry and do not expose it to extreme temperatures (hairdryer, heater, extended exposure to sunlight, etc.) to avoid corrosion or deformation. The normal operating temperature is from 0 to 40 °C/32 to 104 °F.
▷To avoid loud, unusual (whistling or beeping) noise and to ensure proper noise cancellation, do not cover the microphone openings of the active noise cancellation circuitry located on the outside of the ear cups.
▷Use only attachments/accessories/spare parts supplied or recommended by Sennheiser.
▷Clean the product only with a soft, dry cloth.
▷Use the product with care and store it in a clean, dust-free environment.
Safety instructions for the lithium polymer rechargeable battery
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Warning If abused or misused, the rechargeable batteries may leak. In extreme cases, they may even present a risk of: •heat generation, •fire development, •explosion, •smoke or gas development. |
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Only use rechargeable batteries and chargers recommended by Sennheiser. |
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Only charge the product / rechargeable batteries at ambient temperatures between +10 °C to +40 °C/50 °F to 104 °F. |
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Do not heat the product / rechargeable batteries above +70 °C/140 °F. Avoid exposure to sunlight and do not throw the product / rechargeable batteries into fire. |
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When not using the product / rechargeable batteries for extended periods of time, charge them regularly (about every three months). |
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Switch rechargeable battery-powered products off after use. |
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Dispose of defective products with built-in rechargeable batteries at special collection points or return them to your specialist dealer. |
Notes on data collection and processing and on firmware updates
This product stores individual settings such as the volume and the Bluetooth addresses of paired devices. This data is required for the operation of the product and is not transferred to Sennheiser or companies commissioned by Sennheiser and is not processed.
Using the “Sennheiser Smart Control” app, you can update the firmware of the product for free via an Internet connection. If the device on which the app is installed is connected to the Internet, the following data is automatically transferred to and processed by Sennheiser servers in order to provide and transfer suitable firmware updates: hardware identifier, hardware revision number, firmware version of the product, operating system type (Android, iOS) and version, version of the app. The data will only be used as specified and will not be stored permanently. If you do not want this data to be transferred and processed, do not connect to the Internet.
Intended use/Liability
These headphones have been designed as an accessory for Bluetooth compliant devices. They are intended for wireless audio communication such as music playback and phone calls via Bluetooth wireless technology.
It is considered improper use when the product is used for any application not named in the corresponding product documentation.
Sennheiser does not accept liability for damage arising from misuse or improper use of this product and its attachments/accessories.
Sennheiser is not liable for damages to USB devices that are not consistent with the USB specifications.
Sennheiser is not liable for damages resulting from the loss of connection due to flat or overaged rechargeable batteries or exceeding the Bluetooth transmission range.
Before putting into operation, please observe the respective country-specific regulations.