Its a manual induction sealing machine the seals induction cap wads.
you hold the head over the bottle to be sealed (as close as possible but not in contact) and press the push switch on the head. the machine runs for a set time after which the cap should be warm towards hot. check the sealing quality and adjust time if necessary.
it can be used for tomato/chilli sauce, peanut butter, oils, spice, yoghurt, pharmaceutical caps and bottles.
bought it new and used it for yoghurt sealing it did very well.
it's as fast as the operator can move between bottles.
its a table top machine and uses domestic power supply. can be used in a living room