Bicycle Electronic Horn Volume Adjustment 4 Kinds of Classic Cingtones Rechargeable 100dB Not Harsh Road Mountain Bike Rechargeable : No need to constantly replace batteries, simply recharge the horn using a USB cable. 4 Kinds of Classic Cingtones : Choose from a variety of classic tunes to customize your riding experience. 100dB Not Harsh : The horn produces a loud and clear sound without being too harsh on the ears. Volume Adjustment : Adjust the volume of the horn to suit your preferences, allowing you to be heard clearly while riding. Product Information Features This bicycle electronic horn uses horn sounding, the bell is soft and not harsh, has the traditional bicycle bell, contains 4 sounds, the volume decibel value is up to 100dB, and has a volume adjustment function. Using silicone straps to install, suitable for ordinary bicycle / road bike / mountain bike / electric bike scooter / children's scooter. Specification Size:50x65mm Weight:48g Product Material: Plastic Color: Black, Blue Decibel: 100dB Battery capacity: 300mAh Charging input: 5V-250mA Packing: color box packing Packing accessories 1 x Horn, 1 x Micro USB charging cable, 1 x Manual, 1 x silicone strap Notice 1Bicycle electronic horn is loud, please do not play the sound to the narrow space indoors or to the ear, so as not to cause unnecessary injury; 2The product contains polymer battery, please do not close to high temperature or fire source; 3The product has a certain level of waterproof, but after each charge is completed, you need to confirm the cover tight micro usb waterproof plug.