Introducing the NEW Ultimate Timer, a rechargeable stopwatch which has a simple to use, lapsed time function. As they are rechargeable, these stopwatches will also have plenty of battery life when needed most. No more throwing stopwatches away and having to constantly replace them or attempting the 'fiddly' change of expensive batteries. They have been specifically designed for school use, to have the functionality that you require but not over complicated by unnecessary functions that confuse