YASONG SLA-B02B 120dB Rechargeable Alarm Siren, 25W, 12 Tones, 5000mAh Battery, LED Strobe, IP65 Microwave Motion Sensor Alarms so the mainframe or public

so the mainframe or public address control station is not included

17 built-in tones with remote adjustment support

LED strobe warning for clear sound and light alerts

When the external signal is activated

4ft power cord for flexible rooftop placement

YASONG SLA-B02B 120dB Rechargeable Alarm Siren, 25W, 12 Tones, 5000mAh Battery, LED Strobe, IP65 Microwave Motion Sensor Alarms so the mainframe or publicThe YASONG SLA B02B rechargeable alarm siren combines a 120dB loud horn, 5000mAh lithium battery and LED strobe warning light for warehouses, homes, businesses, factories, mines, schools, ports and outdoor emergency security areas. This model uses a built in rechargeable battery that can provide up to 8 hours of working time when fully charged. The included remote control adjusts the volume and switches tones within a short operating range. 120dB loud