Hot&Cold Beauty Instrument

Specification
Input: DC 5V 500mA
Temperature: 6-42℃ (±3 ℃)
Vibration Frequency: 8600(±10) rmp
Charging Time: 3 hours
Charging Power: 2.5W
Battery Capacity: 750mAh
Standby Time: 40days
-Use Time: 5 mins / time