BTL ergonomic multi-frequency ultrasound heads are equipped with visual and acoustic contact control. The unique operator-independent ultrasound applicator HandsFree Sono® features the unique Rotary Field Technology and enables very fast, effective and comfortable treatment. | BTL人體工學多頻超聲波探頭配有視覺同聲學接觸控制功能。獨特嘅HandsFree Sono®超聲波應用器使用旋轉場技術，提供快速、高效、舒適嘅治療。