Lenovo Wireless Pro Rechargeable Combo Keyboard/Mouse [4X31K03931]

Battery Life    Up to 3 months
Cable Length/Type    1 M / USB A to C
Weight    KB: 586 g (20.67 oz) MS : 80 g (2.82 oz)
Backlight    No
Mice Button    8 buttons (Left / Right Click, DPI Button, Forward Button, Backward Button, Power Switch, Multi-Device Switch, Scroll-wheel with middle click and right/left-tilt)
Button Life    Up to 10 million clicks for left and right buttons
Keyboard Key Lifecycle    Up to 10 millions clicks
Mouse Sensor    Optical IR Sensor
Hardware Requirements    Supported PC with USB-A port or Bluetooth Low Energy
Warranty Type    Customer Replaceable Unit (CRU)
Power Requirement    KB：420mAh lithium battery Mouse：380mAh lithium battery
Scrolling    4-way scrolling (Up, Down, left, right)
Brand    Lenovo
OS Requirements    OS Independent
Packed Weight    885 g (31.22 oz)
Agency Approvals    CE,CB,BQB,TUV Mark, cTUVus,FCC,IC,IDA,WPC, BIS,SIRIM,NTA,SDOCo, SDPPI,NTC,MIC,AITI,RCM, NCC,BSMI,MSIP,VCCI,JRF, SRRC,ANRCETI,ICASA, MINCOM,STA,MoC, UkrSEPRO,ACI,FAC,TRA, NTRA,TRC,MOC,ICT, INACOM,NCC,ANRT,CERT, CNC/AFTIC,ANATEL, SUBTEL,IFETEL,TUV NOM
Package Type    Brown Box (FSC Certified)
Packed Dimensions (L x D x H)    538 x 129 x 42 mm (21.18 x 5.08 x 1.65 in)
Height    Mouse: 36.06 mm (1.42 in) KB:14.8 mm (0.58 in)
Cable Length    Mouse: 111.29 mm (4.38 in) KB:437.4 mm (17.22 in)
Depth    Mouse: 62.23 mm (2.45 in) KB:128.8 mm (5.07 in)
Special/Added Features    Programmable Keys / Lithium battery / Seamless switch up to 3 devices / Dual mode connections : 2.4G & Bluetooth / Dynamic Wheel / Bio-rubber coated grip / AES 128 encryption
Warranty Period    3 Years
Maximum Operating Temperature    40 degrees Celsius (104 degrees Fahrenheit)
Minimum Operating Temperature    0 degrees Celsius (32 degrees Fahrenheit)
Maximum Relative Humidity (%)    95%
Minimum Relative Humidity (%)    20%
Battery Charging Time    2hours for full charge
Included Accessory    Lenovo USB-A Unified Pairing Receiver, USB-A to USB-C charging cable
X direction Key Pitch    19.05 mm (0.75 in)
Y direction Key Pitch    19.05 mm (0.75 in)
Connection Type    2.4G & Bluetooth
DPI    3-level Adjustable (default at 2400, 1600, 800) , Levels can be configured via Lenovo Go Central Software up to 4000