The JBL Tune Flex earbuds feature 12mm drivers that deliver JBL's signature Pure Bass Sound for an immersive audio experience. Equipped with Active Noise Cancelling and Smart Ambient modes, these earbuds let you control what you hear, providing focus or allowing awareness of your surroundings. With four microphones, they ensure clear, hands-free calls, enhanced by VoiceAware, which lets you control mic feedback. Enjoy up to 32 hours of battery life (8 hours in the earbuds, 24 in the case), with a 10-minute Speed Charge offering 2 additional hours. Their IPX4 rating ensures water and sweat resistance, making them perfect for any weather or workout.