Litestak Sound Module 24VDC - Available in 24VDC and 120VAC. Modular unit fits on top of any Litestak configuration. Select one of 18 tones. Capable of outputs between 59 to 69 dBA at 10 feet (69 to 79 dBA at 1 meter). Indoor use only. Type 1 enclosure. UL Listed and CSA Certified.