Compatibility and Language Support: This advanced tracker wristband is compatible with a wide range of Android devices. It Supports multiple languages, making it accessible for a diverse user base. Designed for Adults: Specifically tailored for adult users, the Global Tracker Wristband features a sleek, wearable design that is both functional and stylish. It's perfect for everyday use, ensuring you stay connected and secure no matter where you are. Functionality and Certification: Equipped with a passometer to track your steps, this wristband is ideal for those who are health-conscious. Although it lacks specific certifications, its quality is upheld by its robust functionality and reliable performance. Origin and Battery Details: Proudly originating from Mainland China, Compatible with 1*CR2032 button cell battery, not included in packaging. The absence of high-concern chemicals in its composition makes it a safer choice for personal use. Waterproof and Durable: The Global Tracker Wristband is designed to withstand the elements, being waterproof and durable. Whether you're using it to locate children, pets, or simply as a personal tracker, it provides peace of mind with its robust build. Dimensions: 23*3.5*0.75cm Weight: 18g Material: Eco-friendly silicone + ABS Power Supply: CR2032 button battery Standby Time: 1 year System: Android Colors: Black Color: Black Package Contents: 1*Locator 1*Wristband 1*Instruction manual 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.