COMPACT AND LIGHTWEIGHT: Measuring 6.6 x 3.5 x 2 cm and weighing approximately 20g, this digital hand tally counter is compact and lightweight, easily fitting into your pocket so you can count anytime, anywhere. It includes a lanyard, allowing you to wear it around your neck or wrist for convenient use and to prevent loss. DURABLE QUALITY: The high-quality ABS plastic outer shell of this counter is wear-resistant and drop-proof, ensuring durability and preventing easy breakage. Powered by an LR44 button battery (included), it provides long-lasting power for over 250 hours, allowing for extended use without battery replacement. EASY TO USE: Simply press the on/off button to power the clicker on or off. When on, the screen will display "0". To count, press the "+" button to add one number at a time, and the "-" button to subtract. To reset to zero, long-press the on/off button until the screen shows 0. CLEAR AND ACCURATE: This electronic manual clicker features a 4-digit LCD screen, displaying numbers from 0 to 9999 (not for negative numbers). Whether adding or subtracting, the LCD screen provides clear and accurate readings, eliminating worries about miscounting. WIDE APPLICATION: This versatile counter is suitable for any scenario requiring number counting. Use it at docks or warehouses for inventory, to count people or vehicles on streets and stations, or for sports events like golf, football, swimming, running, and jump rope.