Review on 🎶 Accurate and Reliable Professional Decibel Meter for Precise Acoustic Measurements by Brett Bush

There is an issue that makes this product "obsolete" after 2 years. Inside the block on the motherboard is a battery (probably to save time when turning off). Of course, after more than 2 years, it fails and the device can no longer remember the time, forcing all entries to start over. So much value for 2 years but why on earth would you put a battery on a motherboard that keeps time. ? Either that or the product didn't work for me. I'm attaching a photo so you can decide.