The new XP Pinpointer, known as the MI-4, has the following innovative features:
Like that the penpointer is waterproof and rechargeable ,but seems like it has a hard time locating small objects , might be I'm still not sure what setting it's on.
XP MI-4 Waterproof Pinpointer Metal Detector
so far the pointer has lived up to the expectations. I have used it and found it very accurate, Still getting used to tuning/detuning the sensitivity but the more I use it the easier it has been to use.