COMPACT AND LIGHTWEIGHT: This digital hand tally counter measures 6.6 x 3.5 x 2 cm and weighs approximately 20g, making it compact and portable. It can be easily carried in a pocket for convenient use anytime, anywhere. A lanyard is included, allowing it to be worn around the 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: Simply 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: Features a 4-digit LCD display that shows counts 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: Suitable for various environments requiring accurate counting. Ideal for use in warehouses and docks for inventory tracking, monitoring foot or vehicle traffic at streets and stations, and recording counts during sports activities such as golf, football, swimming, running, and jump rope.