Review on Sony ICD-PX Series Digital Voice Recorder with Built-in Mic and USB, 4GB Memory, Noise Cut for Noise-Free Recordings, Includes NeeGo Lavalier Lapel Mic for Enhanced Performance by Tyler Parker

I forgot what life was like when you used disposable batteries with no battery level indicator. For me, the whole point of this device was that it was lightweight so it could be used while walking. But it uses old-fashioned batteries with no battery level indicator, so you still have to buy batteries and carry them around with no indication when the device suddenly dies and you need to replace them. The modern version of this device will have a rechargeable battery, so it can start every session fully charged. Instead, your audio dies randomly, and if you don't watch it, you just lose everything else. Instead I recommend finding a rechargeable version or going back a generation and finding rechargeable AAAs.