Abus, Lock accessories, Alarmbox, colour: black, alarm function with at least 100 dB for 15 seconds, after that automatic new activation, 3D Position Detection – detects smallest vibrations and movements in all 3 dimensions releasing the alarm, smart alarm - in case of small vibrations (e.g. caused by a ball) it releases a short alarm sound, secure fastening on the bike, includes CR2 battery and mounting, weight: about 370g