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 your child all day, from school to play and more Just 10 minutes of USB-C fast charging gives 90 minutes of play. | BLUETOOTH CONNECTION: Equipped with Bluetooth 5.3 technology, SoundForm Nano 2 allows kids to wirelessly connect to all Bluetooth devices within a 30-foot distance. Easily pair with your laptop, iPad, or mobile device. | BELKIN SIGNATURE SOUND plus 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 parents can hear their kids more clearly. | DURABLE EARBUDS: Our kids Bluetooth earbuds have antimicrobial ear tips while the earbuds and case are durability tested* to withstand drops and spills. IPX5 compliance ensures sweat and water resistance, so kids can splash around and work up a sweat. | SAFE LISTENING VOLUME: The SoundForm Nano Gen 2 Bluetooth earbuds are designed specifically for kids, built with a responsible max listening volume of 85dB that keeps kids' ears safe as they enjoy longer streaming or gaming sessions.