Feature: 1. IP68 Rating: Wear it freely during various daily water related activities such as washing hands, bathing, and swimming, thanks to the IP68 rating water proof and dust proof design of this counter 2. Long Lasting Endurance: Equipped with a built in 40mAh lithium ion battery, this electronic finger counter offers up to 7 days of continuous use, catering to your extended operational needs 3. 5 Different Rings: The package includes 5 rings in different sizes, allowing you to choose the appropriate fit based on your finger sizes or preferences, ensuring a comfortable wearing experience 4. User Friendly: This device supports counting up to 999999, it meets a wide range of counting demands. With a time reminder and a clear interface display, it facilitates easy use and readability 5. APP Connection: Seamlessly connect with a mobile APP for enhanced convenience and efficiency. Suitable for both men and women of all ages, it offers versatile uses across different contexts Specification: Item Type: Finger Counter Product Material: ABS Rating: IP67 Battery: 401215 Lithium Ion Battery, 40mAh (built in) Download Program: For Android, for iOS, for Equantu Function: Counting, 5 times ANAN reminder Rings Inner Diameter: Approx. 23.9mm / 0.94in, 22mm / 0.87in, 20mm / 0.79in, 18mm / 0.71in, 16.5mm / 0.65in (Can be installed at any required size) Weight: Approx. 148g / 5.2oz . Package List: 1 x Counter 5 x Rings 1 x Charging Cable 1 x Charging Adapter 1 x User Manual