Features: Built-in alarm Daily water resistance Great for shed, garage, vehicles etc. Size: 9.8 x 9 x 3.5cm With 3 keys Long-lasting 6 x A76/LR44 1.5V batteries included Note: To use as an ordinary padlock simply insert eh shackle with the groove away from the key port If using on moving vehicles use as an ordinary padlock until stationary then alarm may be set Battery replacement: To replace the batteries remove the 2 screws in the shackle holed