I have deep-seated tensions under the shoulder blade - and was hoping to come up with this device to the strain. The processing of the device is good - the vibration of the unit is relatively strong. The head has a flat shape, which is possibly useful in the lumbar region, or on the calves (superficial massage). To my deeper tensions I'm not hard to get. It has 2 attachments here: A to mitigate the effect and with knobs (cellulitis?) - I have not tested the essays. The "heat source" is useless - it makes about as warm as an old 60W bulb in 20cm distance - you can tell quite easily: "there's something ..." You can turn on the heat source and regulate the vibration speed. The strength of the vibration can not be regulated.
Overall, the device is actually not bad (not suitable for my purposes) - and should deserve 3 stars. AAAAB: The device is supplied in a note: "Rate us well on Amazon and you get a bathroom scale given." That's incredible! Such business practice I have never experienced. Please read the other reviews before this background. I wanted to upload this list as customer image - but I'm not sure if I thus infringes copyright.
I now have gained me the Beurer MG48 and am satisfied. There, the heat is even less available - but by the ball head to get more targeted in-depth - and thus ran to the tension.