Ships from the USA
Shipping time : USPS (3-7 business days)
Features:Waterproof, premium quality materials, sturdy, durable and corrosion resistant.
Small size and light weight, easy to take and keep.
Suitable for bike, mountain bike, etc.
How to change battery:Step 1. Open the back cover.
Step 3. Change batteries and install back cover.
Package Included:1* Bike Electronic Horn