Single power can operate at 2.4V through 6.0V. Current output could drive 8 ohm speaker with a transistor, Vout could drive buzzer directly. The voice content is stored up to 60 seconds at 5.8 KHz (55500h) for S6605 and can be separated to 128 sections. See next page for other device's data. Duration of each section can be different and is multiples of 100h. Total duration of all 128 sections with mute is up to 96 seconds (80000h). The voice content can be accessed in "Sentence" type on KeyBoard.