Motorcycle locks, 110db alarm,alarm speaker in the middle of ... , anti-muffle, rain can't come into. CE,ROHS. Motorcycle locks (siren alarm lock, alarm lock)Lock Specifications:1.Alarm ... .Double sides removable shackle5.Lock battery:.Tamper proof batteries .12pcs of button batteries free of charge.Life time:12months under usual ... , garden shed etc. Can protect you from unnecessary lost. Motorcycle locks