Package, instruction manual, and trial batteries not included. I am selling this because I only used it a few times when I was a student preparing for exams and haven't used it since. I have confirmed that the LCD screen lights up, all functions work correctly, and the buttons function properly. Sonic 100-Hour Timer Light Blue ・Material: Main material = ABS ・Size: Product: 90 x 65 x 23mm [Product Description] A timer that can measure up to 100 hours for long exam preparation. Sound ON/OFF setting is possible. Time up is indicated by light. Clock function and alarm function included. [Product Features] It can measure time up to 100 hours, so it can be used for long-term exam preparation and measurements such as experiments. Sound ON/OFF setting is possible, and time up is indicated by light. It has a stand that stands at an easy-to-see angle. It also has a magnet on the back that sticks to steel surfaces. Clock function and alarm function included. After the time is up, it automatically switches to count-up, so you can see the elapsed time. [Alarm] Electronic sound ⇔ LED light switching / Alarm duration: Approximately 60 seconds [Set Time] Countdown: Maximum 99 hours 59 minutes 50 seconds, Minimum 10 seconds / Count-up: Maximum 99 hours 59 minutes 59 seconds [Volume] Small: Approximately 65dB, Large: 75dB (2-level adjustment possible)