1、BLUETOOTH 3: Wireless bluetooth earpiece adopts Bluetooth 3 intelligent chip, which provides strong power for sound analysis and call noise reduction, effectively reducing daily noise. 2、HIFI SOUND QUALITY: Bluetooth earpiece adopts moving coil unit design, good sound resolution, no distortion of details, digital sound processing filter makes the experience faster and better quality. 3、VOICE CONTROL: Hands free earpiece supports voice control to answer calls, HD voice calls, free your hands, comfortable to wear, fully compatible with all kinds of Bluetooth devices. 4、IPX7 WATERPROOF: Wireless earpiece supports IPX7 level sweatproof and waterproof, with a professional grade waterproof fully enclosed sound cavity, to prevent daily sweat and rain infiltration. 5、LONG BATTERY LIFE: Single ear earpiece built in high capacity lithium battery, digital screen display, using Type C charging, 365 days of ultra long standby, 5 minutes of charging can talk for 5 hours.