This is a small carrying case to keep the cord of the hearing protection from forming a big mess of tied up knots in your pocket. It also keeps the Tips clean and stops them from collecting dust. So your hearing protection will hold up much longer and nicer.

This is a simple housing for a capacitive moisture sensor. I had it outside on the balcony for two years now and the sensor still looks pretty good. The cap is secured with two wood screws 3,5x9,5mm.