To help you conserve that limited storage space on your Android device, Amazon is letting you download Prime Music tracks to an SD card. If your go-to device has a slot for extra memory, you'll be able to store music from Amazon's streaming library for offline listening. As you might expect, you can download any purchased albums and songs there, too. In addition to the storage update, you can now control the audio and browse the app from your Android Wear device. The service also gained expanded artist pages and tabs for new and popular music to keep you up to date on what's fresh. The latest version of Prime Music for Android is rolling out now, so if you're not seeing the new features, they should arrive shortly.