ALL DAY USE: 8 hours of life per earbud plus 20 hours in their case totals a 28-hour battery life, allowing these earbuds to keep up with you all day, from school to the gym and more! Just 10 minutes of USB-C fast charging yields 90 minutes of playtime. BLUETOOTH CONNECTION: Equipped with Bluetooth 5.3 technology, SoundForm Rhythm allows you to wirelessly connect to all Bluetooth devices within a 30-foot distance. Easily pair with your laptop, iPad, or mobile device. BELKIN SIGNATURE SOUND + CLEAR CALL QUALITY: These wireless earbuds are engineered to deliver full, balanced high-fidelity audio, while Environmental Noise Cancellation (ENC) cancels out background noise so people can hear you more clearly. BLUETOOTH MULTIPOINT 2-DEVICE CONNECTION: Stay connected to 2 devices at once; enjoy a seamless transition from your laptop to your iPhone and vice versa. Switch back and forth between taking calls on the laptop and listening to music on your phone. DURABLE EARBUDS: This set of Bluetooth earbuds and their case are durability tested* to withstand drops and spills. IPX5 compliance ensures sweat and water resistance, so you can work up a sweat during exercise and stay prepared for potential accidents.