sure, here is what you're asking for. Vibrating Machines at the Gym

[BlakeHolden]

portable and hassle-free use

[ConnerAbdiel]

May have less mighty vibrations

[TrippNixon]

Can have shorter battery life

[RogerRafael]

It truly depends on what you want from the experience. Both sorts have their own offerings. Go for the one that gives you the most comfort and satisfaction.