2 year warranty
Philips Support
How long to charge Philips headphones before first use?
For optimal battery capacity and lifetime, it is good to charge the headphones for a longer time (longer time than the normal charging period) before first use:
The information on this page applies to the following models: SHB9100WT/00 , SHB9100/00 , SHB9001WT/00 .
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