Design : Thin, light and easy to carry voice recorder Easy Connectivity : Direct USB built-in for easy connection to PC Built-In Memory : Up to 4GB of built-in storage, expandable via microSD (SDHC/SDXC) cards Usage : Record in MP3/LPCM with a high sensitivity S-Microphone Auto Music Recording : Record in optimised audio capture settings for music frequencies. Reduces the impact of by wrong microphone sensitivity settings Wider, brighter recording LED: Wider, brighter LED to make it easy to recognise when you’re recording Battery Life : Supplied AAA battery will last for up to 55 hours.