COMPACT AND LIGHTWEIGHT: This digital hand tally counter measures 6.6 x 3.5 x 2 cm and weighs approximately 20g. Its compact and lightweight design allows it to be easily carried in a pocket for convenient use anytime, anywhere. A lanyard is included, enabling you to hang it around your neck or wrist for added convenience and security. DURABLE QUALITY: The counter features a high-quality ABS plastic outer shell that is wear-resistant and impact-resistant, ensuring long-term durability. It is powered by a single LR44 button battery (included), providing reliable operation for over 250 hours, minimizing the need for frequent battery replacements. EASY TO OPERATE: Press the on/off button to power the device. When turned on, the screen displays "0". To count, press the "+" button to increment the count and the "-" button to decrement. To reset the count to zero, press and hold the on/off button until the display shows "0". CLEAR AND ACCURATE: Equipped with a 4-digit LCD display, this electronic counter can show numbers from 0 to 9999 (does not support negative numbers). Each press of the "+" or "-" button updates the display clearly and accurately, helping prevent counting errors. WIDE APPLICATION: This tally counter is suitable for various environments and use cases. Ideal for use in warehouses and docks for inventory counting, monitoring foot or vehicle traffic at streets and stations, and tracking participants in sports activities such as golf, football, swimming, running, and jump rope.