This Philips DVT4010 digital voice tracer allows precise conversation recording with automatic adjustment of audio settings. The AutoAdjust+ technology analyses the audio signal and chooses the correct setting for crystal clear recordings. Plug and play in Windows, macOS and Linux with MP3 recording for clear playback and easy file sharing. The recorder also features a clear LCD colour display, an 8GB internal memory for up to 88 days of recording and a MicroSD memory card slot to enable virtually unlimited recording. The recorder comes with a rechargeable li-polymer battery, which provides up to 25 hours battery life in LP mode.