Make sure your Bluetooth accessory is fully charged and turned on before attempting to pair. Depending on the accessory, you may have to press a button or activate a switch to power it on. Make sure your Bluetooth accessory and the iPhone are within close range. The range may vary by accessory, but no more than 30 feet apart is recommended. The accessory must be in pairing mode so that your iPhone can detect it. Some accessories automatically go into pairing mode when turned on, while others require you to press a button or select an option from a menu. You can usually figure out if an accessory is in pairing mode by checking the behavior of an LED light. For example, sometimes a light will blink on a device when it's ready for pairing.  If you're not sure how to enable pairing mode, check the device's manual. "Pairing mode" is sometimes referred to "discover mode" or "making the device discoverable." If you're using an iPhone X or later, swipe down from the top-right corner of the home screen. On earlier iPhones, swipe up from the bottom of the home screen. A pop-up screen with more icons will appear. If you see the word "Off" below the "Bluetooth" icon, tap the icon once to turn it on. Bluetooth is enabled once the icon turns blue. If you don't see this option, you may be using an older version of iOS. To pair your accessory, open the Settings, select Bluetooth option, and slide the "Bluetooth" switch to the On (green position). Then, skip to Step 8. This time, your iPhone will scan for nearby accessories in pairing mode and display them in a list. If a pairing password is not required, you should be able to start using your Bluetooth accessory with the iPhone immediately. If you are prompted to enter a password, the password may be in your accessory's manual (or on its screen, if there is one). Common factory-generated passwords include 0000, 1111, and 1234. If you can't find a password, try one of these.  Now that the accessory is paired, it will always appear as a pairing option in your Bluetooth settings. You will not have to go through the process of pairing the two again unless you tell your iPhone to unpair or "forget" the accessory. Keep the accessory in range of your iPhone when in use. You'll need to stay within range to maintain the connection.
ब्लुटूथ एक्सेसरी को ऑन करें: एक्सेसरी को पेयरिंग मोड में डालें: अपने iPhone का Control Center खोलें: ब्लुटूथ आइकॉन पर टैप करें और दबाये रखें: ऑन करने के लिए (अगर ऑफ हो तो) Bluetooth पर टैप करें: ब्लुटूथ आइकॉन पर टैप करें और दबाये रखें: पेयरिंग शुरू करने के लिए, अपने एक्सेसरी के नाम पर टैप करें: