Tune Flex True Wireless Noise Cancelling EarbudsPure Bass. Zero noise. Tackle your day one song at a time with the JBL Tune Flex. These true wireless earbuds give you up to 32 hours of exceptional JBL Pure Bass Sound, while the ergonomic and water resistant design gives you all day comfort in any weather. A simple touch allows you to manage and enjoy perfect calls anywhere, without ambient noises. And with Active Noise Cancelling and Smart Ambient technology, you choose whether you want to tune out