Feature: 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 ℃, and the temperature can also be set by remote control. 3. The inner liner is an aluminum casting heating body, with memory function, which can heat quickly, save electricity, water and have stable performance. 4. Mini instant water heater, made of high quality materials, is durable, wear‑resistant, corrosion‑resistant and can be used for a long time. 5. Built in real‑time chip monitoring, with anti leakage protection, support post and shutdown protection functions. 6. This heater does not need to be preheated, and uses water and electricity separation to heat, which is safe and reliable, and can be used at ease. Specification: Condition: Brand New Item Type: Water Heater Material: PC, Copper Frequency: 50 - 60HZ Remote Control Battery: 2 x AAA Battery (Battery Not Included) Weight: Approx. 1724g / 60.8oz Size: Approx. 24x13.5x6.5cm / 9.4x5.3x2.6in Wire Requirements: ≥ 2.5mm² copper core wireAir Switch Requirements: ≥ 25A Electricity Meter Requirements: electronic electricity meter ≥ 30A, mechanical electricity meter ≥ 20A Water Pressure Requirements: tap water basically meets the requirements, and booster pump can be added if it is too small. Operation Method: Press and hold the shutdown key, and after 6 seconds, it will automatically switch to gear mode, and then press 6 seconds to switch the frequency conversion mode. Advantages of frequency conversion mode: the machine only needs to set the temperature, and the system automatically changes the output power to reach the set temperature, making the operation more convenient and the setting more intuitive. Advantages of gear mode: the gear is 4 gears, and the fixed power of each gear is 1000 / 2000 / 3000 / 4000W, respectively P1 / P2 / P3 / P4, 1 to 4 gears. The gear can be controlled by people, the system does not need to calculate the power, and the low gear can be used in spring, summer and autumn. If the home wire is less than the specification of 2.5mm² copper core, the gear mode can be adopted, and the gear 1 to 3 can also meet the needs of ordinary washing, and the low gear can be used to control the power to prevent the wire from burning The conversion setting method of frequency conversion and gear position: 1. Press the power button to turn on the machine (the default is frequency conversion mode when starting up) 2. Then the display shows the marquee 3. Then long press the power button for 6 seconds 4. The display shows P (displaying P is the gear mode) 5. Press the heating button or the cooling button, it can be changed from P1-P4, respectively 1000/2000/3000/4000W, 4 gears 6. Then turn on the water flow, you can work and heat 7. In winter, the water inlet temperature is low, the water flow at the water inlet is slightly reduced, and the heating temperature will keep up 8. The same method: you can change back to the frequency conversion mode Package List: 1 x Water Heater1 x Instruction Manual1 x Remote Control (Battery Not Included)1 x Remote Control Bracket2 x Bag of Screw and Screw Sleeve Note: 1. Pre sale test: every machine has been tested with water and electricity. Do not misunderstand the residual water.2. Water pressure: the water tower of the water tank or the household with very small water output should be considered carefully. The machine may not be heated.3. Water supply before use: water supply is required for the first use, and power on heating is allowed only after the water outlet is smooth. It doesn't matter later.4. Water temperature problem: different inlet water temperature and different water pressure will result in different actual use effect of each household. Please know.5. If the water heater blinks E2, check whether the port is tightly connected or whether the internal hot water pipe leaks. Long‑term leakage from the upper water inlet may leak into the internal parts and damage the parts. If the parts are wet, E2 will fail.