BICYCLE SOUND LOCK ALARM LOCK ALARM BIKE LOCK SOUND LOCK 110DB BICYCLE LOCKS BICYCLE SOUND LOCK Code, convenient to use, avoid the weakness of the key, which can be easily opened with another key. Low power consumption to ensure long battery life. Waterproof: Fix do your bike without worrying about having to take it off in bad weather. Easy to install by yourself. PACKAGING LIST 1 * Bike Safety Alarm 110dB Sound Lock (Black) ALARM LOCK This item ma selection of high average lower sensitivity with 4 digital codes Only the user can unlock. It can protect the zamek of the bicycle from damage and prevent the thief from moving the bikes. and also have functions that zamek anti-theft can not replace. Bicycle lock with safety alarm Kolor: black. Size: approx. 9,7*6,2*3,7 cm/3,8*2,4*1,5 inches (L *width *height ). 4 digital code, only user can unlock. Quiverstyle style alarm, 110 dB high volume export sound. Choose high middle lower sensitivity. Protect the zamek of the bicycle from damage and prevent the thief from moving the bike. They have functions that cannot be replaced by an anti-theft zamek. Code, convenient to use, avoid the weakness of the key, which can be easily opened with another key. Low power consumption to ensure long battery life. Waterproof: Fix do your bike without worrying about having to take it off in bad weather. Easy to install by yourself.