Features PROFESSIONAL SHOOTING TIMER: Can be used as a countdown stopwatch, sets two sets of preset times, and sounds an alarm at the beginning and end of the preset time PRACTICAL AND PORTABLE: The timer also offers a variety of functions, including adjusting brightness for the scene, and is 1.4inches in size, easy to carry EASY TO USE: The cube timer features three easy to set buttons that you can quickly master using the user manual HD DISPLAY: Countdown stopwatch features a bright HD 1.4in high digital display that can be seen from dozens of feet away APPLICABLE SCENARIO: Time cube is perfect for private occasion such as chess casino table games and is perfect for gifting Specification: Item Type: Cube Timer Material: ABS Power Supply: 3 x AA dry batteries(not include) Package List:1 x Cube Timer1 x User Manual Package List 1 x Cube Timer 1 x User Manual