... circuit. OTP voice chip ,sound chip, Voice IC--170 seconds OTP voice chip, IC chip, voice chips, sound chip, sound ... to meet all kinds of complicated functions. Applications* Car parking systems, Reverse sensor, Reversing radar, GSM car anti-theft ... systems, Central lock actuator, TPMS(Tire Pressure Monitor System)* Home security system, Safely, Burglar alarm, Car alarm.* Home appliances ( ...