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 enough to fit in your pocket for easy portability. Start counting anytime, anywhere. A lanyard is included, allowing you to wear 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 drop-resistant, ensuring long-lasting durability. It is powered by an LR44 button battery (included), providing extended operation for more than 250 hours, minimizing the need for frequent battery changes. EASY TO OPERATE: Simply press the on/off button to turn the device on or off. When activated, the screen displays "0". Press the "+" button to increment the count and the "-" button to subtract. To reset the count to zero, long-press the on/off button until the screen displays "0". CLEAR AND ACCURATE: The device includes a 4-digit LCD display screen capable of showing numbers from 0 to 9999 (not suitable for negative numbers). The LCD screen updates clearly and accurately with each addition or subtraction, ensuring reliable counting. WIDE APPLICATION: This versatile counter is ideal for a wide range of counting needs across various environments. It is suitable for use at docks and warehouses to track inventory, for monitoring foot or vehicle traffic on streets and at stations, and for sports events such as golf, football, swimming, running, and jump rope competitions.