Sony LinkBuds: True Wireless Earbuds / Compact and Lightweight (4.1g) / Fully Open Style for Always-On Wear / Microphone for Calls / 12mm Drivers /

Equipped with a newly developed, high-quality ring driver, these earbuds offer a new listening style that allows you to listen to music while still hearing natural ambient sounds. The open design prevents ear canals from getting stuffy and is gentle on the ears. The specially designed 12mm ring driver and processor deliver high-quality sound. Sony's smallest and lightest wireless earphones are half the size of the WF-1000XM4. Weighing just 4.1 grams per earbud, they're incredibly lightweight. Combined with the open design, they don't block your ears, making them fatigue-free even when used for extended periods. High-Quality Call Performance: AI technology delivers high-precision call performance. An algorithm designed to pick up only the caller's voice ensures clear calls. New Smart Features: Adjust volume, play, pause, and skip tracks by tapping the area around the earbuds, rather than just the earbuds themselves. Comprehensive Basic Features: 5.5 hours of playback time, 12 hours of charging time with the case. A 10-minute charge provides 90 minutes of playback. IPX4 water resistance. Included: Charging stand. Reference: Is this a malfunction? Troubleshooting -Place the headset in the charging case and close the lid. Placing the headset in the charging case may solve the problem. -Charge the headset. Charging may solve the problem. -Restart the connected device. Restarting your computer, smartphone, or other connected device may solve the problem. -Reset the headset. Initialize the headset. -Return the volume control and other settings to the factory default settings and delete all device registration (pairing) information. -Check the support website. If this does not solve the problem, contact Sony's customer service center.