YASONG SLA-B02B 120dB Rechargeable Alarm Siren, 25W, 12 Tones, 5000mAh Battery, LED Strobe, IP65 Hand Crank Alarm Siren This model uses a 5000mAh

This model uses a 5000mAh lithium battery and can be charged by AC100–240V power

The big remote turns the alarm on or off

After power connection

The YASONG SLA-01TY-500-3 is an outdoor wireless remote control alarm siren with a 120dB adjustable sound output

emergency rescue areas and outdoor warning points

YASONG SLA-B02B 120dB Rechargeable Alarm Siren, 25W, 12 Tones, 5000mAh Battery, LED Strobe, IP65 Hand Crank Alarm Siren This model uses a 5000mAhThe 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