Fashion watch design, IP68 waterproof, wireless technology. Low voltage indication. Built-in removable, rechargeable lithium battery. Intelligent coding, easy to use and simple. Suitable for elderly users, individuals with disabilities, hospitals, nursing homes, restaurants, kitchens, and factories. The product features a high-performance rechargeable battery with long standby time and built-in charge/discharge protection circuit. Includes automatic battery capacity detection. Upon receiving a wireless call signal, the device provides vibration, audible alert, and LED flash notification. Slight variations in color and appearance may occur between the actual product and images due to lighting, display settings, and production batches—these differences do not affect functionality. Color: Black Material: ABS Package Contents: 1 x Wireless Pager 1 x Receiver Note: Measurement tolerance is ±1–3 cm.