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 wear it around your neck or wrist for added convenience and security. DURABLE QUALITY: Constructed with a high-quality ABS plastic outer shell, this counter offers excellent wear and impact resistance, ensuring long-term durability. It is powered by an included LR44 button battery, providing reliable operation for over 250 hours, minimizing the need for frequent battery replacements. EASY TO OPERATE: Turn the device on or off using the power button. When powered on, the screen displays "0". To count, press the "+" button to increment the count or the "-" button to decrement. To reset the count to zero, press and hold the power button until the display shows "0". CLEAR AND ACCURATE: Features a 4-digit LCD display capable of counting from 0 to 9999 (does not support negative numbers). Each press of the "+" or "-" button updates the count clearly and accurately on the screen, helping to prevent counting errors. WIDE APPLICATION: Suitable for various environments and counting needs. Ideal for use in warehouses and docks for inventory tracking, monitoring foot or vehicle traffic at streets and stations, and counting participants or repetitions during sports activities such as golf, football, swimming, running, and jump rope.