1. With temperature display, it can display the water temperature in real time, and the operation is simple and convenient. 2. The body has touch screen buttons to adjust the temperature. The temperature range is 28-55 degrees Celsius, and the temperature can also be set remotely. 3. The inner tank is a cast aluminum heating element with memory function, fast heating, power saving, water saving, and stable performance. 4. The mini instant water heater is durable, wear-resistant and corrosion-resistant, and can be used for a long time. 5. The built-in chip monitors in real time, has anti-leakage protection, and supports power-on and power-off protection functions. 6. No preheating is required, water and electricity are separated for heating, safe and reliable, and safe to use. Specification: 1. Material: PC, Copper 2. Voltage: 110-220V 3. Power: 110V: 3000W 220V: 4000W 4. Frequency: 50 - 60HZ 5. Remote control batteries: 2 AAA batteries (batteries not included) 6. Weight: about 1700 grams 7. Dimensions: about 24 x 13.5 x 6.5cm 8. Wire requirements: greater than or equal to 2.5 square meters of copper core wire 9. Air switch requirements: greater than or equal to 25A 10. Electric meter requirements: electronic electric meter is greater than or equal to 30A, mechanical electric meter is greater than or equal to 20A 11. Water pressure requirements: Tap water basically meets the requirements, if it is too small, a booster pump can be added. Operation method: 1. Press and hold the power off button, it will automatically switch to the gear mode after 6 seconds, and then press and hold for 6 seconds to switch to the frequency conversion mode. 2. Advantages of the frequency conversion method: the machine only needs to set the temperature, and the system automatically changes the output power to the set temperature, making the operation more convenient and the setting more intuitive. 3. Advantages of Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.