Suitable for 1.5V and 9V battery types and button batteries, such as AA, AAA, C, D, 9V (for more details, please see your third picture) Warning: The "CE" mark engraved on the product has been replaced by the label affixed to the package. Suitable for 1.5V and 9V battery types and button batteries, such as AA, AAA, C, D, 9V (for more details, please see your third picture) The reading speed is fast, the LCD screen digitally displays and indicates the power level, and there is a battery on the back to tell you which battery is compatible with this tester. Note: It is recommended to minimize the test time to save battery power. Dimensions: 6.7 x 3.9 x 1.2 inches made of plastic Included packaging: 1 x battery tester Product description Black Specification: Size: 6.7 x 3.9 x 1.2 inches Weight: 51 grams Color: Black Things: Plastic Package includes: Battery tester (without AAA batteries) Warning: It is recommended to reduce the test time as much as possible to save battery power