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 you to carry it in your 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: Constructed with a high-quality ABS plastic outer shell, this counter is resistant to wear and impact, providing long-lasting durability. It is powered by a single LR44 button battery (included), offering extended 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 display shows "0". To count, press the "+" button to increment by one or the "-" button to decrement by one. To reset the count to zero, press and hold the on/off button until the display reads "0". CLEAR AND ACCURATE: Equipped with a 4-digit LCD display, this electronic counter can show values from 0 to 9999 (does not support negative numbers). Each press of the button updates the count clearly and accurately on the screen, helping prevent counting errors. WIDE APPLICATION: This versatile counter is ideal for various environments requiring accurate counting. Suitable for use in warehouses, docks, and logistics for inventory tracking. It can also be used to monitor foot or vehicle traffic in public areas, as well as for tracking laps or repetitions during sports activities such as golf, football, swimming, running, and jump rope.