Feature:1. Reliable and Portable: Kids calculator is made of ABS, which is skin friendly and durable, with LCD screen, clear voice prompts, and portable size2. AAA Battery Power: Kids math calculator requires 3 AAA batteries to start using. Does not support charging, you can replace AAA batteries to use by yourself (AAA batteries are not included, please bring your own)3. Play Method: Select your skill, choose your game (practice or challenge), read the questions and enter your answers, then make a sound to indicate correct and incorrect answers and track your success. (See the manual for more information)4. Educational Toy: Versatile includes addition, subtraction, multiplication and division tests, math games, math formulas, time limit tests and more to encourage your child to learn5. Holiday Gift: Educational math toy is suitable as a gift for children at Easter, Halloween, Children's Day, parties, birthdays, etcSpecification:Item Type:Kids Oral Arithmetic ToyMaterial: ABSModel: S9Battery Type: Requires 3 AAA Batteries (not included)Endurance: About 30 Hours of Continuous UseSpeaker: 0.25WScreen: Black and White Digital DisplayCharging: Does Not Support Charging, You Can Replace the AAA Batteries to UseKey: 20 Silicone Keys, a Toggle Switch, a Press SwitchFunctions: Single Digit Addition and Subtraction, Two Digit Addition and Subtraction, Multiplication and Division, Games, Math Mnemonics, Etc..Package List:1 x Kids Oral Arithmetic Toy1 x User ManualNote:Shipped Without BatteryPlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.