• High-concerned chemical:None
• Certification:Waterproof
• Model Number:BG-3509
• Material:Plastic+Metal
• Size:3X3X3.5CM
• Type:Electric Horn
• Charging mode:Battery/USB -Taye C

Recommended to you Bicycle Horn Mountain Bike Mini USB Charging Waterproof Electronic Bike Bell Riding Equipment Children's Scooter Accessories Notice There are two types of this product, one is a charging model and the other is a battery model, please buy according to your needs! The battery model requires two CR2032 button batteries！ The charging model has a Taye-C interface！ The following is a demonstration video of the charging model