YASONG SLA-800BW 120dB Portable Rechargeable Motion Sensor Siren, 2600mAh Battery, 12 Tones, IP65, USB Audio Recordable Alarm Siren and the default volume and

and the default volume and tone are not adjustable

pressing any button starts all connected sirens

This model stays in standby mode after power-on and triggers audible and visual alerts when people or animals move within the detection area

The siren includes multiple warning tones and supports custom alarm sound upload through the built-in USB port

but the current specification lists a 90dB buzzer

YASONG SLA-800BW 120dB Portable Rechargeable Motion Sensor Siren, 2600mAh Battery, 12 Tones, IP65, USB Audio Recordable Alarm Siren and the default volume andThe YASONG SLA 800BW is a portable rechargeable motion sensor alarm siren with a 120dB loud horn, LED warning light, and built in battery power for temporary outdoor security alerts. This model uses a sensitive motion sensor to detect people or animals within the warning area. The maximum sensing range is rated up to 10m 32ft, and the siren can be set to light only, sound only, or sound and light alarm mode. 120dB loudspeaker for clear emergency