Please rest assured to buy, we will send you the corresponding version according to the usage standards of the country you purchased. ProductDescription: Itis a smart controller which can be programmed on smart cellphone APP via Bluetooth communication. > Working water pressure: 1 to 8 bar (14.5 to 116 psi) (solenoid valve inside) >Operating system: IOS 7.0 or above (iPhone4s, iphone5, iphone6; Android 4.3 or above, smart phone with firmware 4.0 or above. >Communication protocol: Bluetooth 4.0, BLE module >Communication distance: 10m (no block connection) >Working voltage: 2*AA alkaline batteries ( not included ) >Battery life: above 6 month >Low voltage: when voltage is below 2.4V, the LED will blink quickly, which means new batteries shall be replaced. >Appicon: How to use: 1. Install APP on smart phone by searching with iWaterTimerin App Store of Iphone; or Google Play of Android phone by searching with ''WaterTimer'' 2. Install 2*AA Alkaline batteries on controller 3. Enable Bluetooth connection on your phone 4. Enter APP WaterTimer, choose spray watering or mist watering function. 5. Select the controller name which need to be connected with 6. Select the function, spray or mist Function details: Spray mode: Duration: Watering for how long Cycle: Either by day of the week, or how many days Start 1: Start watering clock time 1 Start 2: Start watering clock time 1 Rain Delay: Delay the watering by how many days (0-7 days) AUTO: Automatic watering mode OFF: Shut off the programs immediately MANUAL: Instant manual watering Mist mode: Begin 1: Start watering time point 1 of the specified time period End 1: End watering time point 1 of the specified time period Begin 2: Start watering time point 2 of the specified time period End 2: End watering time point 2 of the specified time period Duration: Run time of the watering Interval: Frequency of the watering Cycle: Day of the week when the program runs AUTO: Automatic watering mode OFF: Shut off the programs immediately MANUAL: Instant manual watering APP Interface: ",