YESIDO KB11 78 Keys Portable Wireless Keyboard 2.4G Bluetooth Dual-mode Laptop Keyboard

• Easy setup, simply insert the USB receiver into your computer or laptop, and use the keyboard instantly
• Easily switch operation system, press key "FN"+"Q" for iOS system, press "FN"+"W" for Windows system
• The built-in 2.4GHz signal creates a disruption-free connection to your computer, which means you can work without delays
• There are 78 keys offer quiet and comfortable typing
• Ergonomic design, matte surface shell for comfortable touch feeling
• Compatible for Windows/Mac/iOS/Linus, etc

Specification: 

• Brand: YESIDO 
• Number of keys: 78 keys
• Wireless distance: ≤10m
• Dual chip: Bluetooth+2.4GHz
• Button life: 300 million times
• working voltage: 3.0-4.2V
• Working current: ≤2.5mA