As a back support when sitting the pillow is ok. The massage function, however, you can not use, because the vibration is relatively weak rather. In particular, the processing of the internal "vibrator" want to be left, not to say is simply cheap. The battery compartment can not be closed. The batteries are held by only two plastic noses. These tabs make inserting the batteries initially quite difficult, but the batteries do not hold properly in the device. So it happens when changing the position again to the fact that the massage function suspends short because the counterpressure from the back is gone and thus the batteries are not kept in the correct position.
Who attaches great importance to the massage function, should resort to another product.
