Rechargeable Finger Counter, IPX8 Waterproof Lap Counter, Silent 6 Channel Digital Counter with LED for Prayer, Swimming, Knitting, Gift – This counter features a built-in rechargeable battery, eliminating the need for replacements and reducing mechanical issues. It offers up to three months of use on a single charge. Designed with IPX8 waterproof certification, it is suitable for use in wet environments. The device has a durable ABS shell with a soft sandy texture and an adjustable silicone ring for a secure, comfortable fit. Equipped with silent, long-lasting buttons, it supports six independent counting channels, each with a range from 0 to 999,999. Includes reverse display function and full-screen LED backlight for visibility in low light. Ideal for various activities requiring accurate counting, such as sports, crafting, lab work, or personal use. Suitable for environments like schools, gyms, pools, and more.