Features: Quick Test the condition of your battery in seconds. Has a movable to accommodate the battery. Test different sizes of batteries in only one unit. This gadget really works when you don 't know which batteries to keep And which to throw away. Place a battery between the two points of the battery tester And it will make the right decision for you in seconds. Battery Volt Tester AA AAA C D 9V Button Cell Descriptions: Portable handheld design with compact size and light weight Used to test the following sizes: 9V Batteries / 1.5V Button cells / 1.5V Regular or rechargeable batteries, such as AA, AAA, C, D Easy-to-read color-code scale indicates power level. Specifications: Model: BT806 Material: Plastic Color: Black Size: 54.8*52.8*23.4mm Net Weight: 31g Package Included: 1 x Battery Tester (Battery not included) Note: Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Please allow slight deviation due to manual measurement. Thank you