FEATURES 
• Six different sounds.
• MODE： continuous.
• OPT： OPEN = 6 sounds
             VDD = 6 sounds with soft chirp
             Soft chirp = 200ms
• Suffix： A → 6 Sounds cascade ( OTP1 = VSS )
                B → 4 Sounds cascade ( OTP3 = VDD )
                C → 1 Sound ( OTP2 = VDD )

APPLICATION 
• Alarm system, Horn etc..