Do you have a question about the HYPERICE VYPER and is the answer not in the manual?
Charge fully for two hours before first use by connecting the adapter to the charging port and wall.
LED lights indicate battery level and charging status; unit can be recharged anytime.
Use the power button to turn the unit on to level one, two, or three; blue LEDs indicate power level.
The unit will turn off after 10 minutes of use; press the power button again to resume.
Wipe unit with a soft cloth; keep away from heat sources, liquids, and children.
Do not immerse in water, disassemble, or operate continuously; unplug after charging; for adult use only.
Seek medical advice before use if pregnant, diabetic, or have specific medical conditions or concerns.