[Easy to Use] Ideal for seniors, children, the disabled, pregnant women, or patients needing urgent assistance. Provides quick and considerate care. Can also be used at the door. Widely used in homes, hospitals, communities, restaurants, offices, etc. [Simple Setup] Plug the receiver into any outlet, and the waterproof transmitter can be worn as a pendant or bedside call button. Enjoy extended standby time. [52 Chime Options] Choose from 52 different chime tones. Features a flashing LED alert light. Adjustable volume with 4 levels, up to 110db, ensuring it's loud enough for the elderly. Never miss an important emergency call. [Long Range] Operates up to 80 meters in open areas (walls and obstructions will reduce the range). No interference from other devices, making it suitable for use almost anywhere in the house. [Low Battery Indication] 1. If the transmitter isn't working but the LED indicator keeps flashing, the battery is low and needs replacing. 2. After replacing the battery, the pairing between the transmitter and receiver may be lost. Simply re-pair them manually. Product Description: Color: White Receiver Power: 90-220V Range: 80m Paring Instructions: 1. Press the button on the receiver until the LED light turns on. 2. Press the call button once to establish a connection with the receiver. 3. The blue light will flash to confirm successful pairing. 4. The receiver will automatically exit pairing mode. 5. The system is ready. Package Includes: 1 Transmitter 1 Receiver Troubleshooting: 1. If the transmitter light keeps flashing without being used, the battery is low and needs replacing. 2. After replacing the battery, the pairing between the transmitter and receiver may be lost. Simply re-pair them manually.