Yes, you can use Apple AirPods 4 to make calls and access Siri. The built-in microphones allow you to speak hands-free, and you can activate Siri by saying `Hey Siri` or by setting up touch controls on the AirPods.

You can check the battery life of your Apple AirPods 4 by placing them next to your iPhone or by using the Batteries widget on your iOS device. Additionally, you can see the battery life on your Mac through the Bluetooth menu when the AirPods are connected.

Apple AirPods 4 are compatible with iOS devices running the latest version of iOS, as well as with Macs, Apple Watches, and iPads that have the latest software updates. They can also be used with other Bluetooth-enabled devices, but functionality may be limited compared to use with Apple products.

Apple AirPods 4 purchased through Kapruka come with a standard warranty provided by the manufacturer. For specific details about the warranty period and coverage, you can check the warranty information provided with the product or contact Kapruka customer service.

If you lose one of your Apple AirPods, you can use the `Find My` app to locate it if it is within Bluetooth range. The app will show you the location or play a sound to help you find it. If you cannot recover it, you may consider purchasing a replacement from an authorized retailer.

Online price at Kapruka is U$ 181.25