Details
This High sensitivity recording device, working time 1 hour. 32x24x1mm
SD card is same size as a standard sd card
SDA has sound recording function, built-in high sensitivity , MICROelectromechanical system microphone
Built-in 20mAH lithium-ion battery
Last up to 9 hours of recording time
Voice activated or standard
Built it clock system
Pre-set time available to begin recording
Set amplification factor of gain
Records in WAV format