Jext Trainer Familiarise with how to use Jext by practising with the Jext trainer. The Jext training device is exactly the same as the ‘real’ Jext except for 2 things – it doesn’t contain any adrenaline and it can be used repeatedly. It works in exactly the same way as a ‘real’ Jext, so it is an excellent way of teaching yourself and others how to use Jext.
