Feature : 1. ISD1820 chip on board 2. onboard microphone, can direct recording 3. 10 seconds of voice recording 4. high quality natural reduction, can be used as a propaganda device module 5. with a loop, move the playback, single pass play function 6. the main pin has led chip, can control the operation by single chip microcomputer 7. working voltage: 3 ~ 5VDC 8. Lama waktu merekam : 10 Detik 9. Ukuran board = 54mm x 38mm