Purchased new and it did not come with the manual. Instructions for use are available on the company website and I was able to find the manual online which will be included as a print out. Information below was taken directly from manufacturers website. 


1. FDA cleared;
2. Stable and long lifespan;
3. Convenient for home use
4. Safer and portable
5. Multi power plugs available


Weight
NW: 0.74kg    GW: 1.26kg 
Power Supply

230V/50Hz, EU plug

220V/50Hz, AU  plug

110V/60Hz, US  plug

Product Dimension
317mm×52mm×48mm
Working Distance
3cm±0.5cm
Effective Radiation Area
55cm2±10%