Compact-Piezo-Siren-RVFM-Compact-Piezo-Siren-105d B-Sound-Output-Pulsed-Tone-5-to-15 Vdc-Operating-Voltage-200m A-Current-Consumption-3-5k Hz-Sound-Frequency-Swivel-Mounting-109g-Weight-Fitted-with-a-Swivel-Mounting-Bracket-Output-is-a-Warble-at-a-1 Hz-Alternating-Rate-Black-ABS-Case Compact-Piezo-Siren