The JBL Tune 230NC TWS make your day better song after song. Completely wireless earbuds give you 40 hours of exceptional JBL Pure Bass sound, while the ergonomic and waterproof design provides all-day comfort in any weather. Make calls easily and seamlessly with 4 microphones that block out ambient noise for perfect calls anywhere. With active noise-canceling and Smart Ambient technology, you can decide whether you want to block out the outside world or prefer to engage with your surroundings. The lightweight stick-close design keeps you comfortable all day long. Sophisticated 6.0mm drivers, amplified by the stick design, deliver JBL's Pure Bass sound so you'll feel every pulsing beat. Enjoy hassle-free, hands-free, stereo phone calls. The Tune 230NC TWS are equipped with 4 microphones so you'll always be heard with perfect clarity. It's fun to answer or return a call. VoiceAware lets you control the signal strength coming into the microphone and how much of your own voice you want to hear. Hear more of what you want to hear and block out other things. With 2-microphone active noise-canceling technology, you can minimize acoustic distractions. Ambient Aware lets you be aware of your surroundings at all times so you feel safer when you're out and about, while TalkThru lets you pause for a quick conversation without taking off your headphones.