- Tên mạch: KD9561 (CK9561)
- Điện áp: 3VDC
- 4 tiếng nhạc: còi xe cảnh sát, cứu hỏa, cứu thương, tiếng súng máy
- Kích thước: 32 x 10 x 2mm
- There are four alarm sound, in fact only three, respectively for 110 public security alarm sound, 119 fire fire alarm sound, 120 medical help rescue sound, another organ with a toy gun in the main. Choose the specific sound the sound see below: Sound choose sound termination method SEL1 SEL2 1. The police car sound are hung up 2. Fire trucks sound VDD (take positive) impending 3. An ambulance sound VSS (answer the negative) impending 4. Machine gunfire any VDD (take positive)
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