MR80 Mini Clip Small Voice Recorder Voice Activated Audio Recording Device Tiny Micro + 72 Hour Battery Life w/Extended Battery Pack Voice activated or continuous recording modes - CD quality recording 72 hours of continuous recording w/ included battery pack! 3 Micrphone sensitivity modes - Powerful enough to record in a large lecture hall Built-in speaker and headphone jack - Clip design & can be attached to clothing or other objects Records in MP3 format & works on with MAC & Windows computers!