When active noise cancellation (ANC) is turned on, the Sennheiser Momentum Wireless headphones are said to have a battery life of up to 17 hours per charge. However, the actual battery life can vary depending on a variety of circumstances.
For example, if you listen at greater volumes, use Bluetooth extensively, or regularly toggle the ANC feature, your battery life may reduce slightly, maybe to around 15 hours. However, if you keep the volume reasonable and avoid using power-intensive functions, you may be able to go closer to the entire 17 hours.
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