A. Product Features 1. Uses imported precision electronic components combined with advanced long-distance technology, providing an effective wireless range of up to approximately 300 meters in open areas. 2. Equipped with a stable audio chip and features 52 high-quality ringtones, delivering clear and loud chime sounds. 3. Designed with a modern European and American style, offering a simple, sleek, and elegant appearance. 4. Digital dual-panel circuit design ensures stable operation and reliable performance. 5. Offers four-level volume adjustment to suit various environments and sound preferences. 6. Durable remote control design; tested for long-term use under normal operating conditions. 7. Includes mounting tape and screws in the package for easy installation without additional tools. 8. Suitable for use in homes, apartments, villas, hotels, offices, nursing homes, and hospitals. B. Configuration Methods - **Pairing**: Press and hold the volume button on the receiver for 3 seconds until the indicator light turns on and remains steady. Then press any button on the transmitter to complete pairing. - **Unpairing**: While plugging in the receiver, press and hold the volume button. After approximately 8 seconds, when the indicator light remains steadily lit, release the button to reset all pairing data. C. Specification Parameters - **Condition**: New - **Material**: ABS - **Color**: Black - **Plug Type**: US standard plug, compatible with 100–240V AC power - **Package Options**: 1 receiver + 1 transmitter; 1 receiver + 2 transmitters D. Receiver Specifications - **Power Supply**: AC 100–240V - **Power Consumption**: 0.5W - **Operating Frequency**: 433MHz - **Remote Control Range**: Up to 300 meters (in open environment) - **Sound Output**: Up to approximately 110 dB with four-level volume control - **Number of Tones**: 52 - **Dimensions**: Approximately 82 x 82 x 43.6 mm / 3.2 x 3.2 x 1.7 inches E. Transmitter Specifications - **Battery**: 1 x 23A alkaline battery (included) - **Dimensions**: Approximately 74 x 38.5 x 15.7 mm / 2.9 x 1.5 x 0.6 inches F. Package Weight Approximately 135 grams (4.8 oz) or 160 grams (5.6 oz), depending on configuration G. Package Contents - 1 receiver - 1 or 2 transmitters (depending on option selected) - 1 roll of mounting tape - 1 pack of screws