How to use it? 1. Power On/Off: Press the power button for 3 seconds to turn on the device; then press the power button for 3 seconds to turn off it.No operation for 10 mins, the device will be off automatically. 2. Setting level: Click the power button to choose the level from 1 to 3 3. Working: Press the working button“OUT” for operation, and release it for stop working. Package Included 1 x Device 1 x Big Needle 5 x Small needles 1 x USB line 1 x manual Device weight: Approx. 90g Size: Approx. 6.9inch Precaution: The items can produce a high temperature effects in an instant, when not in use please avoid children to play
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