Concerning this item Listen to more of what you want and less of what you don't with the JBL Tune Beam TWS's active noise cancellation feature. Using Active Noise Cancellation technology, you can lessen background noise. TALKTHRU AND A SMART AMBIENT: TalkThru lets you have a brief conversation without taking off your headphones, and the Ambient Aware feature makes you more conscious of your surroundings and makes you feel safer when you're outside. The sound of JBL Pure Bass: Every pulsing beat is felt thanks to JBL's Pure Bass Sound, which is delivered by cleverly designed 6mm drivers enhanced by the stick's form factor. LONG PLAYTIME WITH QUICK CHARGE: With a 48 (12+36) hour battery life, you can listen to music continuously for 10 hours.