Ultra‑Thin 4mm Card Digital Voice Recorder — Zinc Alloy, 750mAh Battery, 150 Hours, MP3 Playback, 3.5mm Earphone

Measuring just 4mm thick, this card-style digital voice recorder slips easily into a wallet or pocket for discreet, on-the-go recording. Constructed from durable zinc alloy, it pairs a slim profile with large memory and battery capacity for extended use. A built-in 750mAh high-capacity battery enables continuous recording for about 150 hours. The unit supports MP3 files and offers recording and playback functions, along with volume adjustment and track switching. Included is a 3.5mm wired earphone for private listening. Physical dimensions are length 8.6cm, width 5.4cm, height 0.4cm. Practical for business meetings, conferences, interviews and similar occasions, the recorder conserves storage and power by starting to record automatically when sound is detected and stopping when no sound is present.