No user manual required, it's that simple! Chess, Go, Backgammon, Scrabble and more. For everyday games just swipe to set up and play (set for all games within 5 seconds without user manual!) For Go it's just as easy to wrap head time, byoyomi time and periods (we've never found an easier byoyomi watch to set). For Backgammon, just swipe to set up any match and motion delay times you like. And for Scrabble, the OT is built in.RECHARGE, DOCK AND PLAY! Download (includes the app), dock (your own phone - iOS or Android) and Play (Chess, Go, Scrabble, Backgammon and more) From standard casual settings to the most complex multi-period FIDE time controls, everything amazingly easy to set within seconds (and without the need of a multi-period user manual). Imagine that!PREMIUM ELEGANT DESIGN BUT EXTREMELY FOR - Tempest looks stunning next to even the mostluxurious sets, with vegan leather touch surface, soft touch padding to securely cradle your phone, zero sliding silicone backing to stay placed even in frantic time frames, extremely heavyweight for added stability, ruggedness and durability.Universal compatibility - suitable for all phone models with gyroscopes, including all Apple iPhones, all Samsung S series, all Google Pixels, etc. Please check the specifications of your own model to make sure it has a gyroscope (all but the very cheapest phones do). Tempest even works well on older devices like iPhone 6 and Android 4.4 or as modern and large as iPhone 13 Pro Max or Samsung Galaxy Ultra 22S. Most slim cases can also stay on. Tempest fits all tightly and securely.FRONTIFUL - The software is always free and updatable over the air! New features are added regularly to: Always updated and always free for both iOS and Android. Even devices as old as iPhone 6 or Android 4.4 are supported).