Can you hear music when the battery runs down? Certainly, you'll be able to keep on to listen to your source even if the battery electrical power is depleted. Without electricity, the headphones work in the passive mode and neither active noise cancellation nor Active EQ is in a position https://allhealthmarket.com/product/smart-wearables/smart-electronics-smart-wearables/headsets/original-lenovo-lp40-pro-tws-earphones-wireless-bluetooth-5-0-earbuds-headphone/