OLYMPUS Voice Trek VP-10, capable of 1620 hours of recording, includes a USB cable and batteries. - Brand: OLYMPUS - Model Name: Voice Trek VP-10 - Included Items: USB cable, Instruction manual, Batteries - Features: 1620 hours of recording possible - Operation Buttons: Menu, Scene, Playback, Stop Thank you for viewing. It supports both rechargeable and alkaline batteries. Operation has been confirmed, data formatted, and alkaline batteries have been replaced. The included nickel batteries will also be included when shipped. There is a high possibility they cannot be charged. If you wish to use rechargeable batteries, please purchase them yourself.