Philips LFH0620 1 GB 70 hours recording time Digital Voice Tracer. Recording modes: HQ (MP3/mono) SP (MP3/mono) LP (MP3/mono). Display: LCD, Display diagonal: 88.9 mm (3.5 "). Built-in speakers: 30 mm, Number of built-in speakers: Round dynamic speaker. Width: 40 mm, Depth: 1.8 mm, Height: 11.8 mm. USB required: Free USB port