1. Which mobile phone models does the remote control support? Answer: For iPhone, it supports iPhone 5 and later models running the latest iOS. For Android phones, OTG functionality is required (supported by most modern Android devices). If unsure, search online: “Does [your phone model] support OTG?” 2. Can the remote control operate all home appliances? Answer: It supports over 90% of infrared-enabled home appliances, including major brands. If a device isn’t pre-programmed, Android users can use the DIY learning function to configure it. iPhone does not support the learning function. Non-infrared devices—such as those using Bluetooth or 2.4 GHz wireless—cannot be controlled. 3. What is the operating range? Answer: Effective range depends on the appliance’s IR receiver sensitivity. Typical tested range is 8–15 meters, sufficient for everyday use. 4. Does the remote require line-of-sight alignment? Answer: Yes. Like standard IR remotes, it must be pointed directly at the appliance with no obstruction between them. 5. For iPhone, the remote is detected when plugged in, but why won’t it pair and why doesn’t the indicator light flash? Answer: Go to Settings > General > Accessibility > Audio/Visual, and turn off Mono Audio (an accessibility feature that does not affect normal call functionality). 6. Why isn’t the remote recognized after plugging it into an Android phone?