Ultra-Thin 4mm Card Voice Recorder — Zinc Alloy Flash Drive Dictaphone, 750mAh Battery, About 150 Hours Recording, MP3 Playback, 3.5mm Earphone, Sound-Activated

This card-style voice recorder features an ultra-thin 4mm profile so it can be tucked into a wallet or pocket for discreet recording of important conversations. Built from zinc alloy for dependable use, it includes a built-in 750mAh high-capacity battery that enables continuous recording for about 150 hours. The device offers large memory for extended storage and supports MP3 playback, recording playback, volume adjustment and track switching. A 3.5mm wired earphone is supplied for private listening. Physical size: length 8.6cm, width 5.4cm, height 0.4cm. Suited for business meetings, conferences, interviews and other situations where discreet, long-duration recording is needed. To save power and storage it uses sound-activated operation: recording begins when sound is detected and stops automatically when there is no sound.