Could you listen to music in the event the battery operates down? Yes, you may go on to pay attention to your supply although the battery power is depleted. Without electricity, the headphones operate in a passive mode and neither active noise cancellation nor Active EQ is able to function. https://allhealthmarket.com/product/smart-wearables/smart-electronics-smart-wearables/headsets/lenovo-lp40-pro-earphones-tws-bluetooth-5-1-wireless-sports-headphone-waterproof-sport-noise-reduction-headphones-touch-control-250mah/