1. One Key Control£¬ Easily install and compatible with all bikes including road bikes
2. Security Surveillance: If the Bicycle is shaking£¬ the horn will sound an alarm for 15 seconds
3. Password Change Function
4. Waterproof£¬ Ultra-loud !#!amp!*! clear sound
5. Easy and safe to use when braking
Brand: SUNDING
Model£ºSD-603
Material: Plastic
Color: Black
Size: 6cm(Length)*4.2cm( Diameter); Length of cable: 18cm
Battery: LR44*4 (Included)



FUNCTIONS:

-Loud Alarm
-One key Control
-Password controlled
-Vibration Alarm
-Passoword Change
-Waterproof



OPERATE INSTRUCTIONS

1. Security Surveillance
Press the "0"button for 2 seconds£¬ the alarm will sound a "tick"after the first second£¬ and double "tick"after the second seconds£¬ then release the button. After 3 seconds£¬ a long sound of "tick" will appear£¬ Which means Surveillance begins.

If the bicycle is shaking during the period£¬ the horn will sound an alarm for 15 seconds£¬ when the alarm stops it still in the Surveillance state. If the bicycle shakes again£¬ a further 15 seconds alarm will follows.

2. Password Change
Press the "3" button for 3 seconds£¬ the alarm will sound a "tick"£¬ then input the old password( default setup is 0000)£¬ after two short sound of "tick"£¬input the new password. ( note: the password is a four-fingure number)

3. Password lost
Remove the battery for 10 seconds and reinstall it£¬ the password will be back to the default one of 0000



1¡ÁBicycle Horn
4¡Ábutton cell
2¡Ábelts
1¡Á English Manual