Compact body, 130dB blast of sound! With LED light Easy operation, just pull the strap Volume: 130dB Power: Alkaline button battery LR44 x 3 Battery life: 8-12 months Dimensions: W40 x D22 x H67mm Weight: 31g Color: Silver Included: Batteries (for testing, pre-installed) Light source: LED light (white, 0.1W) Thank you for viewing.