Voice IC--170 seconds OTP voice chip, IC chip, sound chip 1. 170 sec duration time 2. Built-in direct drive speaker circuit. OTP voice chip ,sound chip, Voice IC--170 seconds OTP voice chip, IC chip, voice chips, sound chip, sound ics Features*170s durations at 6KHz. Sampling rate supported form 6KHz to 32KHz.*WAV files are supported.*Equipped 16 bits DAC audio output. Built-in PSG(Programmable ...