Features: Quick on/off operation: After the battery is inserted into the battery compartment, it can be activated/deactivated in seconds simply by flipping the power switch on the front, which is crucial for emergencies such as urgent road construction or temporary hazard marking. Portable LED strobe light: This portable siren light can instantly ignite the party atmosphere and can also be applied in haunted house decorations to enhance the ambiance and improve the experience. Specifications: Material: ABS and PS Color: blue, red Size: about 3.6 x 4.5 inch/9.2 x 11.5 cm Power requirements: 3 x AA batteries (not included in the package) Package includes: 6 x LED strobe light Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays