Describe: color as shown Material: ABS+PC Battery type: CR2032*2 Weight: 34.5g Size: 3.8*6cm/1.49*2.36INCH Battery voltage: 3Vx2 Features 1.120dB loud volume: The high-decibel horn warning sound can effectively remind pedestrians and passing vehicles. 2.Easy installation: Small size can be installed at will, no tools are required, and it is more convenient to install by hand. The sliding pad can effectively prevent the horn from moving on the handlebar, and it can be firmly locked on the bicycle without fear of bumps and extreme road conditions. 3.Long battery life: Powered by 2 CR2032 batteries, no mercury added (in line with EU environmental protection standards), leakage protection (more durable use), can withstand a continuous current of up to 20mA, so our bicycle bell can ring continuously. Measured to last 4000 rings. It can be used for a long time without frequent battery replacement. 4.IPX4 waterproof rating: It is suitable for daily outdoor use in rainy environment, without fear of wind and rain. 5.Strong versatility: Equipped with elastic silicone, it has strong versatility and is not limited by the thickness of the handlebar. Long and short straps are available for all sizes of MTB, road, walking, e-bike or scooter handlebars. Notes: 1. As we all know, different computers display different colors, and the actual color may be slightly different from the picture below. 2. If you find it difficult to choose the size, you can contact me at any time, we will give you some suggestions, but only for your reference. 3. We can accept orders of mixed items, colors and sizes. This product includes: 1pc speaker 2 straps 1 non-slip rubber pad 2 CR2032 1 instruction manual