Bike Bell Loud Electric The loud electric bike bell has 100-125dB sound and weighs only 36g. Your horn can certainly be heard even in a long-distance for more safe use. It's suitable for road bikes, mountain bikes, kids bikes, city bikes, or other types. Perfect bicycle accessories for adults and kids.Excellent Anti Theft Alarm Function The loud electric horn has 4 sound modes: whistle sound, horn sound, alarm sound, and steam sound. You can choose it depending on different conditions by one key to switch, Moreover, it has ANTI-THEFT function. If anyone touches or pushes the bike, the horn will emit a rapid and continuous loud alarm.Durable horn with Full Protection The durable bike horn is made of high-quality plastic silicone material. It's sealed, dustproof, and high-strength shockproof with ipx5 waterproof grade. Not afraid to travel in any weather condition, satisfy your outdoor cycling needs. This electric bell will be your good partner.Rechargeabl Bicycle Bell The scooter horn is equipped with USB charging port which built-in 200mAh lithium battery, 1.5 hours fully charged can use for 20-30days. Easily mounted and secured with stretchable straps. It's easy to carry and able to adapt to different bike models. Bicycle handlebar diameter range:22.2-31.8 mm.