Effect of the BTL-899 Therapy for Non-invasive Lipolysis and Circumference Reduction of Abdomen When Compared to a Sham Treatment

Inclusion Criteria: * Age \> 21 years * Voluntarily signed informed consent form * BMI ≤ 35 kg/m2 * Women of child-bearing potential are required to use birth control measures during the whole duration of the study * Subjects willing and able to abstain from partaking in any treatments other than the study procedure to promote body contouring during study participation * Subjects willing and able to maintain his/her regular (pre-procedure) diet and exercise regimen without effecting significant change in either direction during study participation Exclusion Criteria: * Cardiac pacemakers * Cardiovascular diseases * Implanted defibrillators, implanted neurostimulators * Electronic implants * Disturbance of temperature or pain perception * Pulmonary insufficiency * Metal implants * Drug pumps * Malignant tumor * Hemorrhagic conditions * Septic conditions and empyema * Acute inflammations * Systemic or local infection such as osteomyelitis and tuberculosis * Contageous skin disease * Elevated body temperature * Pregnancy * Breastfeeding * Injured or otherwise impaired muscles * Scars, open lesions and wounds at the treatment area * Basedow's disease * Previous liposuction in the treatment area in the last six months * Abdominal wall diastasis * Unstable weight within the last 6 months * Previous body contouring treatments in the abdomen area in the last three months