Please rest assured to buy, we will send you the corresponding version according to the usage standards of the country you purchased. Features: Automatic Irrigation: Intelligent watering device, which can water potted plants regularly and quantitatively, even if you are on vocation or out, you don't have to worry about unmanned irrigation. Remote Controlling: Support APP(eWeLink) control, you can set irrigation frequency, single irrigation time, timed irrigation, etc., compatible with iOS and Android system. Root Watering: The dripper can be inserted directly into the soil, which is convenient for injecting water directly into the plant roots, with high efficiency and no damage to plants. USB Power Supply: 5V direct current power supply, no need to charge or replace the battery, long-lasting endurance, more convenient to use. Convenient & Practical: It comes with complete accessories, easy to assemble and use, quick to build your own watering system. A irrigation set can water 10 pots of plants. Wide Application: Small and lightweight, it does not take up space, perfect for use in home, office, terrace, balcony, laboratory, etc. Specifications: Power supply: DC 5V/2A, Type-C USB Built-in battery: 18650 rechargeable battery Standby current: 135uA Wireless standard: IEEE 802.11b/g/n Wireless frequency: 2.4GHz Wireless distance: 45M Bluetooth version: Bluetooth 5.0 Waterproof grade: IP66 Operating temperature: 0 ~ 60 (14 F ~ 140 F) Operating humidity: 1% 95%RH (non-condensing) Size: 71mm(L) X 48mm(W) X 90mm(H) ",