Lenovo 4X31N50728 keyboard Mouse included Universal RF Wireless Black

Universal RF Wireless Full-size (100%) Numeric keypad Mouse included Black 3 pc(s) Keyboard Certification CB, March TUV, CE, cTUVus, FCC, IC, IMDA, WPC, BIS, SIRIM, NBTC-SDOC, SDPPI, NTC, AITI, TRC, NCC, BSMI, MSIP, VCCI, JRF, QUALITY, ICASA, TRA, NTRA , MOC, PTA, ICT, EQM, BOCRA, ARCT, ETA, NCA, POTRAZ, ecc. Key travel distance 1.91 cm Keyboard keys operating life 1000000 million characters Numeric keypad Yes Keyboard form factor Full-size (100%) Pointing device No Device interface RF Wireless Connectivity technology Wireless Recommended usage Universal Design Product colour Black Backlight No Power Service life of battery 15 month(s) Number of batteries (keyboard) 1 Keyboard battery type AAA Power source type Battery Mouse Buttons durability (million clicks) 3000000 Mouse battery life 18 month(s) Mouse battery type AA Scroll type Wheel Scroll Yes Buttons type Pressed buttons Buttons quantity 3 Movement resolution 1600 DPI Movement detection technology Optical Mouse included Yes Operational conditions Operating relative humidity (H-H) 20 - 95% Operating temperature (T-T) 0 - 40 °C Weight & dimensions Mouse weight 65.5 g Mouse dimensions (WxDxH) 110.1 x 61.5 x 36.1 mm Keyboard weight 406.5 g Keyboard dimensions (WxDxH) 422.3 x 134.5 x 21.9 mm Packaging data Package type Box Package weight 680 g Package height 42 mm Package depth 520 mm Package width 142 mm Packaging content Receiver type Nano receiver Wireless receiver interface USB Type-A Receiver included Yes Number of products included 3 pc(s) Other features Warranty period 3 year(s)