Spec：

• ● Power Source：DC 12V、0.45A
• ● Alarm frequency：2.4 ~ 3.7 KHZ
• ● Alarm volume：110 dB
• ● Material ：ABS plastic
• ● Dimension：122mm ×74mm ×43mm

Function：

• ● 1.The alarm speaker has a red wire.
• ● 2.The alarm speaker has a black wire.
• ● 3.The alarm speaker with flashing lights function.
• ● 4.The alarm speaker operates a single pre-installation box.