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M2 IEBT SW | 3
Important safety instructions
Intended use/Liability
These in-ear wireless headphones are designed for use with mobile
devices (e.g. mobile music players, mobile phones, tablets) that support
wireless communication via Bluetooth. Compatible Bluetooth devices
include those that support the following profiles: Hands Free Profile (HFP),
Advanced Audio Distribution Profile (A2DP), and Audio/Video Remote
Control Profile (AVRCP).
It is considered improper use when this product is used for any application
not named in the associated instruction manuals and product guides.
Sennheiser does not accept liability for damage arising from abuse or
misuse of this product and its attachments/accessories.
Before putting the product into operation please observe the respective
country-specific regulations!
Safety instructions for the Lithium-Polymer battery pack
WARNING
In extreme cases, abuse or misuse of the Lithium-Polymer battery pack
can lead to:
• explosion
• fire development
• heat generation
• smoke or gas development
Dispose of products with built-in rechargeable batteries at
special collection points or return them to your specialist
dealer.
Only use rechargeable batteries and chargers recommended
by Sennheiser.
Charge products with built-in rechargeable batteries at
ambient temperatures between 10 and 40 °C/50 and 104 °F.
Switch battery-powered products off after use.
When not using the product for extended periods of time,
charge its built-in rechargeable batteries regularly (about
every 3 months).
Do not heat above 70 °C/158 °F, e.g. do not expose to sunlight
or throw into fire.
Do not charge a product with built-in rechargeable batteries if
the product is obviously defective.
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