Description of features: 1. With temperature display, the water temperature can be displayed in real time, and the operation is simple and convenient. 2. The body is equipped with touch screen buttons to adjust the temperature. The temperature range is 28-55℃, and the temperature can also be set remotely. 3. The inner tank is an aluminum cast heating element with memory function, fast heating, energy saving, water saving and stable performance. 4. The mini instant water heater is made of high-quality materials, which is durable, wear-resistant and corrosion-resistant, and can be used for a long time. 5. Built-in real-time chip monitoring, anti-leakage protection, and support for power-on and power-off protection functions. 6. This heater does not require preheating and uses water and electricity separation for heating. It is safe and reliable and can be used with confidence. Specifications: Condition: Item Type: Water Heater Material: PC, Copper Power: 110V: 3000W 220V: 4000W Frequency: 50 - 60HZ Remote Control Batteries: 2 AAA batteries (batteries not included) Weight: Approx. 1724 g / 60.8 oz Dimensions: approx. 24x13.5x6.5cm / 9.4x5.3x2.6in Wire requirements: 2.5 copper core wire Air switch requirements: 25A Electricity meter requirements: Electronic electricity meter 30A, mechanical electricity meter 20A Water pressure requirements: Tap water basically meets the requirements, and if the pressure is too small, it can be Add pump. Operation method: Press and hold the power off button, it will automatically switch to the gear mode after 6 seconds, and then press for 6 seconds to switch to the variable frequency mode. Advantages of variable frequency mode: 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. Advantages of gear mode: There are 4 gears, each gear has a fixed power of 1000/2000/3000/4000W, which are P1/P2/P3/P4, gears 1 to 4 respectively. The gear can be controlled by humans, and the system does not need to calculate power. The low gear can be used in spring, summer and autumn. If the household wire is less than 2.5m copper core specification, you can use the gear mode. Gears 1~3 can also meet the needs of ordinary washing. You can use low gear to control the power to prevent the wire from burning. Packing list: 1 water heater 1 instruction manual 1 Remote control (batteries not included) 1 remote control holder 2 screws and screw bag