Fast Operation 2.4G Wireless Plug and PlaySimply connect both your portable keyboard and mouse with one USB receiver(The nano receiver just snap in the storage of mouse near battery compartment.) without any software and then enjoy a strong and reliable wireless connection up to 10 meters(33 ft) away with virtually no delays or dropouts. Typewriter Round Retro Keyboard With Precision TypingThe classic typewriter style is integrate with modern style keyboard technology. Responsive and incredibly supportive, all interactions are positive, and enjoy the "Click"feeling by the old royal typewriter, so you can type with confidence. With Auto-Sleep FeatureThe ergonomic wireless keyboard is powered by 1 AA battery, and the wireless mouse is powered by 1 AA batteries. While not using for 8-10 minuts, will enter auto-sleep mode, that saves battery life and reduce battery replacement. Allowing for 18 months of keyboard use and 18 months of mouse use, battery life may var