It uses DEKA's (Italy) 2.45 GHz microwave device, which passes through the epidermis with little heating and generates heat in the subcutaneous fat layer. Two handpieces of different depths are used to target fat and firmness separately.

It is done by energy amount (10 kJ, 60 kJ or 80 kJ), about 30–60 minutes per session, every 2–4 weeks. Warmth and redness may last a few hours, and mild stiffness or swelling a few days. Avoid saunas, alcohol and strenuous exercise for one week.

It is the same Onda device: Onda lifting is for facial contours, while Body Onda is for body areas such as the upper arms, abdomen and thighs.