Features MULTI FUNCTION: Watch battery tester can be used to measure the button battery of the watch, very convenient, 3 in 1 function EFFICIENT MEASUREMENT: Quartz tester can also be used to test the quartz movement of the watch, which is efficient to operate PORTABLE AND USEFUL: The watch repairing tool is lightweight and compact, easy to carry and store DURABLE MATERIAL: The watch quartz tester is made of rugged plastic and metal for a long life DEMAGNETIZATION FUNCTION: Watch demagnetization machine with built in on or off buttons for your mechanical watches Specification: Item Type: Quartz Tester Material: ABS Battery: 2 x AA battery(not include) Package List: 1 x Quartz Tester Package List 1 x Quartz Tester