COMPACT AND LIGHTWEIGHT: This digital hand tally counter measures 6.6 x 3.5 x 2cm and weighs about 20g, making it compact and lightweight. It can be easily carried in your pocket for convenient use anytime, anywhere. A lanyard is included, allowing 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-lasting 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: Press the on/off button to turn the device on or off. When powered 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 (not suitable for negative numbers). Each press of the "+" or "-" button updates the display clearly and accurately, helping prevent counting errors. WIDE APPLICATION: This versatile counter is ideal for various environments where counting is required. It can be used in docks and warehouses for inventory tracking, at streets or stations for monitoring pedestrian or vehicle traffic, and during sports activities such as golf, football, swimming, running, and jump rope.