1,The input voltage of the product is 12 V, all motorcycles and 12 V cars can be used and the installation range is very wide. 2,Universal double-insert joints make wiring more comfortable and suitable for more models. 3,400 / 500Hz high pass; 105-118dB High Decibel sound, more warning and louder. 4,Made of ABS and metal environmentally friendly material, water resistant, dust resistant, longer life. 5,The product is sent to the mounting bracket. The bracket is universal and can be installed on cars and motorcycles at will. It is easy to install. Features: Universal double-insert joints make wiring more comfortable and suitable for more models. 400 / 500Hz high pass; 105-118dB High Decibel sound, more warning and louder. Made of ABS and metal environmentally friendly material, water resistant, dust resistant, longer life. The product is sent to the mounting bracket. The bracket is universal and can be installed on cars and motorcycles at will. It is easy to install. Specifications: Condition: Material: ABS, iron Color: Shown as picture Working current: 3.5A Nominal power: 36 W Frequency: High: 510Hz; Minor: 430Hz Sound level: 105-118dB (A) Weight: Approx.512g/18.1oz Fitment: Can be used for All 12V motorcycles and cars Package List: 2 x Speaker 2 x Screw 4 x Bracket 2 x Nut Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.