-board-board isd1820 chip
-board-mounted baby head, which can be recorded directly
-can be recorded for about 10 seconds
-high-quality natural voice reduction, which can be used as a caller module
-loop, click and single playback functions
-the chip's main pins have been drawn and can be controlled by a single chip microcomputer
-working voltage: 3~5v
-plate size 54 (mm) x 38 (mm)