Ultra-Thin 4mm Card Voice Recorder — Zinc Alloy Dictaphone, 750mAh Battery, ~150 Hours, Voice-Activated MP3 with 3.5mm Earphone (8.6×5.4×0.4cm)

Compact card-style digital voice recorder crafted from durable zinc alloy. At just 4mm thick it slips into a wallet or pocket for discreet, on-the-go recording. A built-in 750mAh high-capacity battery provides approximately 150 hours of continuous recording, while generous internal memory offers ample storage for long sessions. Voice-activated operation conserves power and space by starting when sound is detected and stopping automatically during silence. Playback and file management support MP3, with volume adjustment and track switching available. The unit includes a 3.5mm wired earphone for private listening. Physical size: length 8.6cm, width 5.4cm, height 0.4cm. Well suited for business meetings, conferences, interviews and other situations requiring reliable, long-duration audio capture.