This model works by power-on operation: when powered on
Red and blue strobe light for visible alarm warning
Please confirm the base type
Rechargeable battery design for portable warning use
The YASONG SLA-01TY is a wireless remote control alarm siren with a 0–120dB adjustable sound output
YASONG SLA-S001 130dB Portable Highway Maintenance Alarm Siren, 100W, 20Ah Battery, Red Blue Strobe Product Size:46.2 x 34 x 19.5cm This model works by power-onThe YASONG SLA S001 portable highway maintenance alarm siren is designed for road work, highway maintenance, tunnel construction, emergency rescue sites and temporary outdoor safety warning areas. This model combines a 300W maximum power alarm system, 130dB adjustable sound, red and blue LED strobe warning lights and a built in rechargeable lithium battery. It supports portable movement with a handle and pull rod structure, making it suitable for