Once it's snapped into place, the handset automatically senses it and consolidates the graphics into the top two-thirds of the display for 100 percent visibility.

The keyboard works by sensing finger presses underneath the buttons, so the accessory doesn't actually have any batteries inside.

When you're not using the keyboard, you can snap it onto the back of the phone to get the most out of the touch screen.

Both phones will support a new audio feature that claims to backfill the fidelity lost in Bluetooth compression, compatible with the company's Level series of wireless headphones.

The usual suspects are onboard to sell cases for both handsets, including Case-Mate, Speck and more.

Samsung will also offer an external battery pack available for both phones for users who need an extra power boost on the run.

The keyboard cover comes in three colors: black, silver and gold. It arrives in September for $80, which works out to about £50 or AU$110.

The Samsung S View Cover is available in a variety of colors and features a window that lets you check notifications and even take a picture using the space as a viewfinder.

The Samsung Level U Bluetooth headphones are made of flexible urethane and are designed to snap apart when they're not in use. Each ear has a 12mm speaker and works together with the phones to answer calls using the built-in noise-canceling microphone.

The Level On headphones are available in both wired and wireless options, and both have 40mm drivers with active noise canceling technology starting at $249.

Samsung's external charging pad uses Qi induction technology for wireless juicing via a wall charger or USB port. A built-in LED indicates when your phone begins to charge, and there's no need to remove the cover for it to work. It's available in black and white for $49.99.

The new flip wallet comes in your choice of leather or fabric details in a swath of colors. The phone automatically turns on and off as you flip it open and the material provides all-around protection for $29.99.

Kate Spade designed this Hybrid Hardshell case for the new Samsung devices, offering a durable rubberized exterior that protects from drops and dents. It's available in four colors for $39.99.

The Samsung Level Box Mini is a micro Bluetooth speaker with NFC technology that lets you pair your device with just a simple tap. Available in three colors for $99.99

Samsung teams with luxury accessories manufacturer Mont Blanc to bring its own line of collaborative cases in rich leather for the Galaxy phones.

The Samsung Level On headphones use Bluetooth technology with an apt-X codec compatibility to deliver (supposedly) high-quality audio with a limited loss in fidelity.

In conjunction with the Samsung Level app, the headphones offer extra volume monitoring and text-to-speech compatibility when connected.

The headphones are designed for comfort with plush cushions and extra padding underneath the headband to support long-term listening comfort.

Touch-sensitive controls are accessible on the side of the ear cups and let you navigate through tracks, control the volume and answer phone calls.

When you pair the headphones with the Samsung app, you can use the company's SoundAlive equalizer and choose from 25 different effects to match your personal audio profile.