Experience clear and bright readouts on the S7pro's OLED screen, ensuring visibility in lighting conditions. This feature enhances user interaction by providing immediate feedback on counts ranging from 0 to 99999, making it ideal for a wide range of counting tasks. Equipped with the latest Type C port, the S7pro offers faster data transfer and charging. This modern connectivity option ensures that the device is -proof and compatible with newer technology, enhancing its usability and efficiency. Control and monitor your counts remotely with the S7pro's Bluetooth functionality and dedicated mobile app. This feature allows for seamless synchronization with your smartphone, enabling you to manage and track your counting activities effortlessly from anywhere. Customize your counting experience with the S7pro's three adjustable speed settings. Whether you need slow, medium, or fast counting, this device meets speed requirements, providing flexibility and efficiency in handling different counting tasks. specifications: Product name: ring counter Product model: s7pro Material: abs+silicone Battery capacity: 75mah adjustable (1st gear 18mm, 1st gear 20mm, 1st gear 22mm) Color: green, rose, grey, black Package Contents: Counter*1 Type-c charging cable*1 Adjusting ring*2 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.