Yoidesu Wireless Anti-Theft Bike Alarm with Remote Control Bicycle Motorcycle Security Alarm 110dB Burglar Alarm Vibration Sensor

Price: $11.48
(as of Mar 05, 2023 16:25:32 UTC – Details)

Vibrating sensor system, when the bicycle shake or vibrate, the alarm will release ultra strong alert sounds for about 20 seconds, good bicycle security anti-theft tool.
9V battery power supply, can last a week for normal usage, when the alarm sound weaker than normal alarm sound, you’d better to replace the battery, please take out the battery if long time no use.
Press the red ‘A’ button to enter armed state, one ‘DU’ sound indicate you, press the gray ‘B’ button to quit the armed state, double ‘DU’ sounds indicating.
Easy to operate, remote control distance can reach up to 10m, open surroundings will be better, sometimes reach up to 30m.