1. Made of high quality metal that is anti-corrosion, wear resistance, solid and durable for long time use.2. Loud alarm can effectively scare thieves away, can also be used as SOS emergency alarm.3. Vibrating sensor system, when the bicycle shake or vibrate, the alarm will release ultra-strong aler..
1.Wireless Door Bell: Smart looking housing with flash light. 2.Simple, vivid and no-wire installation design avoids trouble and save money when in installation and don’t effect decorate environment. 3.Build in anti-interference design, avoid the interference..