Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nady PMC-2X Driver-to-Passenger Motorcycle Intercom

You may find a lot of more expensive sets than this unit, but my last set lasted 16 years! I had it fixed locally after 12 years and decided to grace the company with a new purchase after 16 years. We are even happier with the new unit as it works under most circumstances and fits nicely inside most helmets, we use it on full face mostly as obviously with an open face at any speed not much will work. Quite happy with the unit in spite of some bad comments I have seen. It demands a little respect as the box is not drop proof, but overall a great little unit for the price.