These are bone conduction earphones that clip onto your ear like ambie♪ Excellent wearing comfort! Bone conduction wireless earphones! You can hear the surrounding sounds clearly, ensuring safety and peace of mind! Calls are also possible. The data transfer speed and communication distance stability have dramatically improved, resolving the conventional communication problems of sound skipping and interruptions. These are completely independent wireless earphones. Sound delay and skipping are effectively suppressed, improving connection stability, achieving high synchronization and high-fidelity sound reproduction. These Bluetooth earphones allow you to enjoy games and videos stress-free. Thanks to bone conduction technology, these earphones allow you to enjoy music comfortably and with a sense of openness without blocking your ears. Because they don't block the ear canal, you can clearly hear surrounding environmental sounds (car sounds, traffic signals, emergency vehicle sirens, etc.) even while listening to music. You can always be aware of your surroundings during sports such as running and jogging. Built-in high-performance lithium battery Charging time: Approximately 2 hours Standby time: Approximately 36 hours Playback time: Approximately 6 hours (varies depending on usage and radio wave conditions) [Compatible smartphone models] Compatible with both iPhone (iOS) and Android. Bone conduction, bone conduction earphones, Bluetooth 5.3, calling, earphones, headphones, wireless, bluetooth, sports, bone conduction headphones