Features:  1.Portable counter precision buttons, accurate counting, and long button lifespan. 2.Equipped with self-locking function to avoid data loss caused by misoperation. 3.Oled display screen, displaying battery level, time, date, and count. 4.Type-c charging, long-lasting battery life, built-in 75mah rechargeable battery. 5.The ring has three adjustable gears, which is convenient and practical.

 Parameters: Product name:ring counter Product model: s7 Material: abs+silicone Input voltage: 3.7 (v) Battery capacity: 75mah Counting range: 0~9999 Product specifications: adjustable (1st gear 18mm, 1st gear 20mm, 1st gear 22mm) Color: green, rose gold, black

Package include: Counter*1 Type-c charging cable*1 Adjusting ring*2 English instruction manual*1