Solar Powered Waterproof Wireless Doorbell with Smart Chime, 1 Button Transmitter and 1 Receiver, LED Light, EU/US/UK Plug Options Features: 1. Intelligent light sensing: Built-in night light activates automatically in low light conditions and turns off during daylight. 2. Strong signal penetration: Stable long-distance signal transmission ensures reliable performance. 3. 52 selectable melodies: High-quality, clear sounds with a variety of chime options to suit personal preference. 4. Adjustable volume in 4 levels: Customizable sound settings allow for optimal o clarity in any environment. 5. Energy efficient design: Solar-powered transmitter reduces the need for frequent charging or battery replacement. Product Descriptions: 1. Solar charging: Eco-friendly and convenient, the transmitter charges using solar power, reducing energy costs and maintenance. 2. Low electromagnetic emission: Designed for safe use around children and elderly individuals. 3. Flexible pairing capability: One transmitter can be paired with multiple receivers, and one receiver can connect to multiple transmitters. Memory function retains settings after power interruption. Specifications: - Receiver operating voltage: 90–260V - Receiver standby current: 10mA - Receiver operating current: 60mA - Receiver operating frequency: 433MHz - Receiver power: 2W - Receiver volume adjustment range: 20–80dB (4-level adjustment) - Transmitter battery: 150mAh polymer lithium battery - Transmitter solar panel output: 5.5V 25mA 0.13W - Transmitter operating current: 12mA - Transmitter working range: Up to 200–300 meters (open area) - Transmitter waterproof rating: IP65 - Number of melodies: 52 - Color options: Black, White - Transmitter dimensions: 90 x 35 x 15mm - Receiver dimensions: 85 x 85 x 26mm Pairing Instructions: Plug the receiver into a power outlet. Press and hold the volume button for 6 seconds until the blue LED stays on. Press the transmitter button. When the receiver’s blue LED flashes, pairing is successful. If not completed within 6 seconds, the process will fail. Note: One transmitter can pair with multiple receivers, and one receiver can pair with multiple transmitters. The system retains memory after power disconnection. Transmitter Details: - Solar-powered battery charging - Operating input: 5.5V 25mA 0.13W - No code duplication - Operating current: 12mA - Response time: 0.5 seconds with LED indicator upon button press - Operating range: Up to 200–300 meters (open area) Receiver Details: - Operating voltage: 90–260V - Standby current: 10mA - Operating current: 60mA - Operating frequency: 433MHz - Built-in night light function: Automatically illuminates in dark or nighttime conditions