K2 Ultra-thin Voice Recorder Portable MP3 Player 16GB Voice Activated Recorder Mini Digital Sound Audio Recorder Professional Dictaphone Black

Features:
Unique and practical design, 4mm ultra-thin card size, you can easily put it in your wallet, pocket, convenient to carry to record important voices in life.
Supports voice-controlled recording. It will record automatically when there is sound around, and auto-stop when no sound, saving memory and power.
With 3.5mm wired headphones, it supports MP3 and recording playback. Supports volume adjustment and track switching.
16GB capacity provides 192 hours of recording. Shutdown to save, simple operation.
Built-in 750mAh large capacity polymer lithium battery offers continuous recording for about 150 hours.