Specification: Input Voltage: DC 5V/1A Lithium battery: 1600 mAh. Charging Time: 2 - 3 hours Warm Reminder: Start at level 1 for your first use. The device generates heat, so do not overuse it. We suggest to use it 3-5 times a week. And in 5 minutes per treatment area for face, 3 minutes per treatment area for chin. Do not wash the device with water to avoid damage.
