Design
Product colour	Black
Keyboard
Pointing device	No
Keyboard keys operating life	10000000 million characters
Keyboard form factor	Full-size (100%)
Certification	CB, TUV marking, CE, cTUVus, FCC, IC, IMDA, WPC, BIS, SIRIM, NBTC-SDOC, SDPPI, NTC, AITI, TRC, NCC, BSMI, MSIP, VCCI, JRF, KVALITET, ICASA, TRA, NTRA, MOC, PTA, ICT, EQM, BOCRA, ARCT, ETA, NCA, POTRAZ
Connectivity technology	Wireless
Key travel distance	1.91 cm
Numeric keypad	Yes
Mouse
Scroll	Yes
Number of batteries (mouse)	1
Movement detection technology	Optical
Mouse battery type	AA
Scroll type	Wheel
Movement resolution	1600 DPI
Buttons type	Pressed buttons
Buttons durability (million clicks)	3000000
Mouse battery life	18 month(s)
Buttons quantity	3
Form factor	Ambidextrous
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	20 - 95%
Other features
Warranty period	3 year(s)
Packaging content
Wireless receiver interface	USB Type-A
Receiver type	Nano receiver
Receiver included	Yes
Number of products included	3 pc(s)
Packaging data
Package weight	680 g
Package height	42 mm
Package width	520 mm
Package depth	142 mm
Power
Power source type	Battery
Keyboard battery type	AAA
Service life of battery	15 month(s)
Number of batteries (keyboard)	1
Weight & dimensions
Mouse dimensions (WxDxH)	110.1 x 61.5 x 36.1 mm
Mouse weight	65.5 g
Keyboard weight	406.5 g
Keyboard dimensions (WxDxH)	422.3 x 134.5 x 21.9 mm

Lenovo 4X31N50722, Full-size (100%), Wireless, RF Wireless, Black, Mouse included