Keyboard Mouse Wireless Logitech MK235

Technical Specifications
Connection Type: Logitech non-unifying protocol (2.4GHz) with Nano USB receiver
Wireless Range: 10 meters / 33 feet
Wireless encryption: 128-bit Advanced Encryption Standard (AES) between devices and receiver

Keyboard
Low-profile keys
Adjustable keyboard height
Battery: 2 x AAA
Battery Life (not rechargeable): 36 months
Special Keys: 15 function keys accessible through "fn" key

Mouse
Connect/Power: On/Off power button
Sensor technology: Advanced optical tracking
Battery: 1 x AA