1. Intelligent light sensing: It is equipped with a night light function. It generally does not light up during the day, automatically lights up at night, and also lights up when the light is dim and goes out when the light is bright. 2. Strong penetration: The signal for long - distance transmission is relatively stable, so there is usually no need to worry about not receiving the signal. 3. 52 pieces of music: The music sounds nice and the sound quality is good. There may be one piece you like. 4. 4 levels of volume adjustment: It usually won't cause trouble due to too loud sound, nor will it be inaudible due to too soft sound. 5. Energy - saving: The transmitter supports solar charging and can also use mains power. The annual power consumption is relatively low. 6. Solar charging: It helps save money, is energy - saving, and environmentally friendly. 7. No radiation: It can be used safely by the elderly and children. 8. Free pairing: One transmitter can be paired with multiple receivers, and one receiver can also be paired with multiple transmitters. ### Receiver parameters 1. Operating voltage: 90 - 260V 2. Standby current: 10mA 3. Operating current: 60mA 4. Operating frequency: 433MHz 5. Power: Less than or equal to 2w 6. Volume adjustment range: 20 - 80db (4 - level adjustment) ### Transmitter parameters 1. Solar battery: 150Mah polymer lithium battery 2. Maximum power of solar panel: 5.5V 25mA 0.13W 3. Operating current: 12mA 4. Operating range: Approximately 200 - 300m (open area) 5. Waterproof rating: IP65 6. Number of music pieces: 52 ### Pairing method 1. Insert the receiver into the socket, press and hold the volume button for about 6 seconds until the blue LED light stays on. 2. Then press the transmitter button. When the blue LED light on the receiver flashes, it indicates a successful pairing. If the operation is not completed within about 6 seconds, the pairing may fail. ### Notes 1. One transmitter can be paired with multiple receivers, and one receiver can also be paired with multiple transmitters, and it has a power - off memory function. ### Transmitter details 1. Solar battery 2. Operating reference: 5.5V 25mA 0.13W 3. No coded string 4. Operating current: 12mA 5. The button has a light reminder, and the reaction time is about 0.5 seconds 6. Operating range: Approximately 200 - 300m (open - air environment) ### Receiver details 1. Operating voltage: 90 - 260V 2. Standby current: 10mA 3. Operating current: 60mA 4. Operating frequency: 433MHZ 5. Equipped with a night light function, it generally lights up at night or when the light is dim 6. Plug type: EU plug, suitable for some countries such as Indonesia 7. Color: Black 8. Material: Plastic 9. Dimensions: Transmitter 90x35x15mm, Receiver 85x85x26mm ### Packaging contents 1. 1 receiver 2. 1 transmitter 3. 1 set of installation accessories It generally only includes the above packaging contents, and other products are not usually included. Note: Lights and different displays may cause the color of the item in the picture to differ slightly from the actual product. A measurement error of +/- 1 - 3cm is usually allowed.