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
Package included:
1 x Keyboard
1 x USB Receiver
1 x English and Chinese User Manual
Other items not included
Specifications
Brand
YESIDO
Retail Packaging
Colored Box
User Manual (Language)
English and Chinese
Gross Weight
0.336kg
Volume Weight
0.202kg
Package Length
28.900cm
Package Width
13.250cm
Package Height
2.350cm
One Package Weight
0.300kg