Please refrain from continuous use for more than 2 hours. Take a break of at least 10~15 minutes every 45 minutes. It can cause harm to health. Depending on your physical condition, please take a longer break.
Please refrain from continuous use for more than 2 hours. Take a break of at least 10~15 minutes every 45 minutes. It can cause harm to health. Depending on your physical condition, please take a longer break.