YX5P series voice IC currently has YX5P025 (SOP8/SOP16/DIP16), YX5P055 (SOP8/SOP16/DIP16), YX5P085 (SOP8/SOP16/DIP16/SOP24), YX5P185 (SOP28/DIP16), YX5P345 (SOP28), YX5P520 (SOP28) The six parent, the series voice IC working voltage 2V-5.5V, can directly push the horn (PWM output), External amplifier circuit (DAC output). Support 16 level volume control, controllable playback speed. One line, two line serial port can control 256 segments of speech. The voice IC comes with microprocessor, the function can be customized.