✅Bluetooth V5.1, support most of Bluetooth devices and lower power consumption

✅2000mAh charging case can full charge 2 earphones around 10 times, offer more 24 Hours music time ✅With waterproof technology, no need to worry about water and sweat anymore ✅10mms dual drive units, enjoy 9D strong deep bass music sound ✅Popular touch control function, support switch songs, phone call and call voice assistant.