COMPACT AND LIGHTWEIGHT: This digital hand tally counter measures 6.6 x 3.5 x 2cm and weighs about 20g. It is compact and lightweight, allowing you to carry it in your pocket and use it anywhere. A lanyard is included for convenient neck or wrist carrying, making it easy to use and helping prevent loss. DURABLE QUALITY: The counter features a high-quality ABS plastic outer shell that is wear-resistant and impact-resistant, providing long-lasting durability. It is powered by an included LR44 button battery, offering extended operation for over 250 hours, minimizing the need for frequent battery replacements. EASY TO OPERATE: Press the on/off button to turn the device on or off. When powered on, the screen displays "0". 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 tally counter shows numbers clearly from 0 to 9999 (does not support negative numbers). Each press of the button updates the count accurately, ensuring reliable tracking without 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 counting during sports activities such as golf, football, swimming, running, and jump rope.