EASY TO USE & PLUG-N-PLAY A USB receiver for both keyboard and mouse stored inside the mouse for storage. Simply plug it into your computer or laptop and turn on the power without installing any extra software. Universally compatible with almost all Wins XP/7/8/Vista, PC, Desktop, Laptop, Mac, Android & iOS devices, such as iPhone, iPad, Mac book, tablet, etc., Note: you need a USB dongle to do the trick for Mac, mobile phones and tables. ERGONOMIC DESIGN & WHISPER QUIET TYPING & MOUSE CLICK The improved typing posture with a holder on the back, keeps your hands, neck, and shoulders relaxed. You will comfortably type on perfect key strokes created for precision and fluidity all day long. Increased key stability reduces noise and optimizes responsiveness so you feel - but don't hear every keystroke if you work in open office spaces or when your family is falling asleep. More accurate, more responsive, and more comfortable to use. LONG BATTERY LIFE & AUTO SLEEP MODE Basic 1 AA * 1 AAA batteries (one for keyboard and one for mouse) are included with the keyboard and mouse. It enters sleep mode when not in use, plus off switches to save battery. How to use: Step 1: Insert 1 AAA battery into the keyboard and 1 AA battery into the mouse; Step 2: Turn the switches on the keyboard and mouse to the "On" position. You can go for months without needing to change the batteries. ULTRA-THIN & PREMIUM TYPING EXPERIENCE Thin, long with numeric keys that provide exactly what you need. They sit raised above a flat keyboard surface to avoid dust and dirt getting into the keyboard's interior. Conflict-free anti-ghosting ensures correct operation simultaneously for a better user experience. A slightly elevated bottom angle tilts the body for a more comfortable typing angle. Additionally, you automatically get access to: music, internet, email, volume, etc. with 12 available shortcut keys. STABLE CONNECTION & PACKAGE CONTENT & CUSTOMER SERVICE 2.4 Ghz 33ft transmission distance technology provides a powerful and reliable connection without delays, interruptions, or interference, giving you the freedom to use wirelessly. What's in the package: 1 * Keyboard and Mouse Combo (USB receiver stored in the mouse); 1 * AAA; 1 * AA batteries; 1 * User Manual. We offer a 24-month warranty, easy and welcome guide, as well as a quick response within 12 hours.