Color: bicycle remote alarm

Size: all yards

【 description 】 : remote control type bike alarm and alarm

[power] : 9 v battery (products do not contain battery, battery another shot)

[usage] : press the red can be A key fortification, du 1;

Press the B button (cancellation of guard against theft, du two sound.

Loud, simple operation, easy security;

Short time leave the bike, don't have to bother to lock the guard against theft, no worries, professional car enclosed specification