Material Type:ABS plastic Item Length:As described Model Name:As described Item Height:As described Item Type:Side Mirrors & Accessories Item Weight:As described Describe: 1. Our product is not only a car bell, but also a siren, security and anti-theft, killing two birds with one stone. 2. The product comes with a fixing strap, which is easy to install and remove. 3. Standby for 180 days, press 100 times a day for 40 consecutive days. 4. The product has left, middle and right buttons, each button has different functions, as shown in the figure below Specification: Material: ABS plastic Size: 3.4*3.4*6cm/1.34*1.34*2.4in Colour: Black Battery capacity: 200mah Speaker volume: 120 dB Charging time: about 20 minutes Waterproof: Rainproof Product weight: 25g Notes: 1. As we all know, different computers display different colors, the actual color may be slightly different from the following pictures. 2. If you find it difficult to choose the size, you can contact me at any time, we will give you suggestions, but only for your reference. 3. We can accept mixed item, color and size orders. The higher the quantity, the higher the discount. The package includes: 1 pcs* bicycle bell siren 1 pcs* strap 1 pcs*USB Dear buyer,Welcome to our store. We guarantee the quality of our products.Welcome to visit.Hope you have a nice day!