... seconds OTP voice chip, IC chip, sound chip 1. 170 sec duration time 2. ... circuit. OTP voice chip ,sound chip, Voice IC--170 seconds OTP voice chip, IC chip, voice chips, sound chip, sound ics ... (keyboard), key combination mode(key array), parallel port mode(COM+SBT), serial port mode.*BUSY pin can be setted to ... and any other products need voice messages. Melody voice IC--170 seconds OTP voice chip