Multiple modes of noise reduction and transparency, easy to switch Three sizes of silicone earplugs to ensure a comfortable fit when worn Bluetooth 5.0 dual-core inner core, separate chips for left and right ears, enhance the stability of transmission connection The earphone built-in ear detection touch IC, the ear detection can be turned off at will, long press to turn on Features 45mAh battery capacity and 360mAh charging compartment capacity with Charging time of 1 hour and wireless charging time of 1.5 hours Multiple modes of noise reduction and transparency, easy to switch Three sizes of silicone earplugs to ensure a comfortable fit when worn Bluetooth 5.0 dual-core inner core, separate chips for left and right ears, enhance the stability of transmission connection The earphone built-in ear detection touch IC, the ear detection can be turned off at will, long press to turn on Features 45mAh battery capacity and 360mAh charging compartment capacity with Charging time of 1 hour and wireless charging time of 1.5 hours