YASONG SLA-05AZ 130dB Button Control Alarm Siren, 45W, IP65, Red LED Strobe, One-Button Linkage Wireless Remote Control Alarm and the remote uses a

and the remote uses a CR2032 coin cell battery

20W solar panel with 10000mAh battery power

Users can adjust the volume and switch tones by side buttons to match different warning environments

and the volume and tone are not adjustable on this default model

YASONG SLA-05AZ 130dB Button Control Alarm Siren, 45W, IP65, Red LED Strobe, One-Button Linkage Wireless Remote Control Alarm and the remote uses aThe YASONG SLA 05AZ one button alarm siren combines a 130dB loud horn with a red LED strobe warning light for homes, factories, mines, schools, ports and industrial warning areas. This model works by button control box operation: after the siren wires and button box wires are connected, the siren stays in standby when powered on. Press any button to start all linked alarms, and press any button again to stop them. One button linkage control for simple