True bone conduction, no speaker, internal vibration and sound IP56 grade is waterproof and dustproof, which can prevent sweat from penetrating during exercise
It is made of high-strength titanium alloy, which can be bent at will at 360°, resisting compression and breaking without deformation for a long time
Bluetooth 5.0 third-generation technology upgrade, more stable transmission
8 hours of super battery life, about 2 hours of charging time
Charging input: 5V/500mA, battery capacity: 150mAh

Specification