A kind of hammer.The system includes: the main body of a hammer includes a head end and a handle.The head end and the handle are composed of a shell and a cover body.A compartment is formed inside the head end.The head end and the handle form a long rod shape.There is an electronic circuit board in the compartment.A massage head,The massage head is protruded on one side of the head end of the main body of the hammer.An electromagnet is arranged inside the head end of the hammering rod main body.The massage head is assembled to the electromagnet.The electromagnet is electrically connected with the electronic circuit board.The designed program can be loaded in the electronic circuit board.The program can control the electromagnet to produce a variety of frequency and force changes.It can't be done with a traditional beating massage stick.The angle between the head end of the massage head and the handle is 120-145 degrees.Easy to use on shoulders,Arm,Massage of abdomen and legs.一種捶捶棒，係包含有：一捶捶棒主體包含有一頭端及一把手，頭端與把手由一殼體與一蓋體併合而成，頭端內部形成一容室，頭端與把手形成一長桿形體，容室內設有一電子電路板，一按摩頭，按摩頭凸設於捶捶棒主體頭端一側，一電磁鐵設於捶捶棒主體頭端內部，前述按摩頭組裝至前述電磁鐵，前述電磁鐵並與電子電路板電連結，電子電路板內得以載入設計過的程式，前述程式得以控制電磁鐵產生多種頻率及力度的變化，其為一般傳統捶打式按摩棒做不到的，按摩頭所在之頭端與把手夾角為120~145度之間，易於使用於肩部、手臂、腹部及腿部之按摩。
