3 In 1 Bluetooth APP Smart Ring Counter OLED Display Reminder Alarm Detachable Holder Multifunctional Portable Counting Tool

Features: 1. Mute button, fitting finger mute touch, can count up to 99999.2. Equipped with bluetooth connection, display the current counting status in real-time on the app or device.3. Oled display screen, displaying battery level, time, and count, with the ability to reverse the screen.4. Dc port (5v) charging, long-lasting battery life, built-in 120mah rechargeable battery.5. Low power operation, adjustable screen shutdown time to ensure long-term counting without frequent charging.Parameters: Product name: ring counterMaterial: abs+siliconeBattery capacity: 120mahProduct specifications: adjustable (1st gear 18mm, 1st gear 20mm, 1st gear 22mm)Color: green, blackCounting range: 99999 (maximum)Note: the default vibration is 33/66/99, and the vibration value can be set as the target value in the mobile app. When the count reaches the specified value, a vibration reminder will be given. Charging with 5v voltage is not supported, and fast charging is not supported.Package include:Counter * 1Jietuo * 2Charging cable * 1Instruction manual * 1