Asus Chill Back Cover Asus ROG Phone 9/9 Pro/9 Pro Edition

The Asus Chill Back Cover is the perfect addition for your ROG Phone 9/9 Pro/9 Pro Edition. With an advanced Composite Vapor Chamber cooling system and unique Audio Redirect technology, this innovative case keeps your phone cool and takes your audio experience to the next level. Whether you're spending hours gaming or enjoying your favourite content, the Chill Back Cover keeps your phone comfortable and performing at its best. Handy for gamers who don't want to compromise!

Advanced cooling technology

Make the most of the ROG Phone's advanced cooling technology with the Asus Chill Back Cover. This is the world's first phone case with an integrated Composite Vapor Chamber (CVC) liquid cooling system and our unique Audio Redirect technology for sound directed forward. Enjoy immersive audio and keep your phone cool for a comfortable, uninterrupted gaming experience.

Effective heat dissipation

The Asus Chill Back Cover features the innovative CVC material, which efficiently dissipates heat from your phone. This lowers the temperature around the SoC by up to 17%. The CVC material, made of polycarbonate (PC) and polymethyl methacrylate composite (PMMC), offers almost the same thermal performance as copper, but without affecting your 5G and Wi-Fi connectivity. This means you can play intense games without your phone getting too hot.

Convenient to use

Whether you're in the middle of an exciting battle or putting your phone to the test with demanding games, the Asus Chill Back Cover keeps the ROG Phone 9 Series performing smoothly. What's more, your device will always be comfortable in your hand, even during prolonged gaming sessions.

Enhanced audio

The Asus Chill Back Cover takes your sound experience to the next level with our innovative Audio Redirect technology. Thanks to precisely designed sound channels, sound is redirected from the bottom speakers to the front. This allows you to enjoy richer and more immersive sound. Whether you're gaming, watching videos or listening to music, Audio Redirect ensures that every sound is clear and direct to you.