Product Model/Name: Rapoo X1800S Wireless Keyboard & Mouse Combo Optical 2.4G 108 Keys 1000 Dpi 10M Transmision Fn Keys
Transmission Mode: 2.4G wireless
Key type: Membrane
Key lifetime: 5 million times
Spill-resistant design: Yes
Power supply mode: Alkaline battery， 1 AA alkaline battery(Pre-installed)
Battery life: 12 months
Product dimension (L×W×H mm): 392*125.6*28.9
Transmission Mode: 2.4G wireless
Sensor: Optical
DPI: 1000
Buttons: Left button, middle button, right button.
Scroll wheel direction: Two-way
Power supply mode: Alkaline battery， 1 AA alkaline battery(Pre-installed)
Battery life: 9 months
Product dimension (L×W×H mm): 104*61.3*28.9
So small and unobtrusive, you can plug it into a USB port and forget about it, and you can say goodbye to worry about lost receivers.
Media control
Spill-resistant design
Long battery life
1000 DPI tracking engine
Entry-level wireless combo, cheap, have basic functions，for the people who do not have too much performance requirements.