1.OTP type voice chip with 84 seoncds duration models . 2.Can be MASK type , for lower the cost WTB voice ... ic series--Voice chip, ic chip, voice ic, sound ic, 84 ... icsFeatures* Low cost OTP type voice chip , can program customized sounds* Can be MASK type , for lower the cost .* duration time: ... some electronic products, etc. 84sec WTB OTP voice chip