Open-Ear Design for Ultimate Comfort and Secure Fit - YHM Q2 Open-ear earbuds are born for all day comfort and freedom. The lightweight ergonomic 120° adjustable silicone ear cushion hook perfect wraps around different shapes of ears, providing a soft and secure grip for even jumping. Superior Audio Experience and Clear Calls - Featured 16.2mm drivers, deliver crystal clear sound quality for immersive music and calls. Instant Connection and Bluetooth 5.3 Built In - Equipped with hall switch, open or close the charging case, earbuds are connected or disconnected immediately. Situational Awareness and Safety - Allows you to immerse yourself in your music while remaining aware of your surroundings, safer driving and running. Up to 30 Hours of Listening with Quick Charge - 1.5 hours per charge and up to 30 hours of listening with the charging case. A 10-minute quick charge provides an hour of battery life.