I installed this USB rechargeable vibration alarm for my electric scooter. The sound is very loud. This is a good solution to the problem https://s.click.aliexpress.com/e/_DciDwHZ US$ 24.96 Min. order: 1 piece ★★★★★ 4.5 (185 reviews) Sold : Login>>
IP65 Wireless Vibration Sensor Alarm System for Bikes US$ 27.44 Min. order: 1 piece ★★★★★ 4.0 (201 reviews) Sold : Login>>
Mini Wireless Remote Control Vibrator Reminder 1~4 Times Vibrations – Remote Control Switches Online Store US$ 28.53 Min. order: 1 piece ★★★★★ 4.7 (225 reviews) Sold : Login>>
Water-Based Lubricants: Development, Properties, and Performances US$ 24.69 Min. order: 1 piece ★★★★★ 4.7 (110 reviews) Sold : Login>>
Smart Wireless Bicycle Alarm System US$ 21.20 Min. order: 1 piece ★★★★★ 4.8 (206 reviews) Sold : Login>>
Fiveschoice Wireless Remote Control Vibration Alarm Home House Security Door US$ 20.23 Min. order: 1 piece ★★★★★ 4.2 (15 reviews) Sold : Login>>