1. Which mobile phone models does the remote control support? Answer: For iPhone, it supports iPhone 5 and above models, and the system supports the latest iOS15. Android phones only need to support OTG (currently almost all Android phones support OTG). If you are not sure, you can search on Google: "Does the **mobile phone** model support OTG?" 2. Can the remote control control all home appliances? Answer: The remote control can cover more than 90% of infrared home appliances currently on the market, and well-known brands are generally supported. If there is no adaptation process and it is not adapted, the Android phone can choose DIY to perform the learning function. (For iPhone, it is not supported yet). Non-infrared home appliances cannot be controlled remotely, such as Bluetooth remote control and 2.4Ghz remote control. 3. How far is the remote control? Answer: The distance between the remote control and the appliance depends on the reception condition of the electrical appliance. Actual measurements of commonly used home appliances include 8-15 meters. Completely meet daily needs. 4. Does it need to be aligned with electrical appliances when using this product? Answer: The working principle of the mobile phone remote control is the same as that of the remote control that comes with the appliance. It needs to be aimed at the appliance and cannot be blocked in the middle. 5. For iPhone, the remote control can be recognized after being plugged in, but why can't it be adapted and the indicator light does not flash? Answer: You can solve the problem by going to phone settings - general - accessibility - turning off mono audio (the mono audio option is an auxiliary function for people with hearing impairment in one ear and will not affect normal calls). 6. Why can't the Android phone recognize the remote control after being plugged in or can't be used normally after being recognized? Answer: 1. If the phone is an OPPO or vivo phone, you need to turn on the OTG.