Lenovo 4X31N50746 keyboard Mouse included Universal RF Wireless QWERTY US English Black

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 | Mouse dimensions (WxDxH): 110.1 x 61.5 x 36.1 mm | Backlight: No | Operating temperature (T-T): 0 - 40 °C | Receiver type: Nano receiver | Pointing device: No | Keyboard layout: QWERTY | Keyboard weight: 406.5 g | Keyboard form factor: Full-size (100%) | Receiver included: Yes | Number of products included: 3 pc(s) | Mouse included: Yes | Product colour: Black | Wireless receiver interface: USB Type-A | Recommended usage: Universal | Keyboard keys operating life: 10 million characters | Keyboard dimensions (WxDxH): 422.3 x 134.5 x 21.9 mm | Buttons quantity: 3 | Connectivity technology: Wireless | Package weight: 680 g | Scroll: Yes | Power source type: Battery | Scroll type: Wheel | Operating relative humidity (H-H): 20 - 95% | Numeric keypad: Yes | Device interface: RF Wireless | Package height: 42 mm | Movement detection technology: Optical | Buttons type: Pressed buttons | Keyboard language: US English | Package width: 520 mm | Movement resolution: 1600 DPI | Form factor: Ambidextrous | Warranty period: 3 year(s) | Buttons durability (million clicks): 3000000 | Number of batteries (mouse): 1 | Number of batteries (keyboard): 1 | Key travel distance: 1.91 cm | Service life of battery: 15 month(s) | Mouse battery life: 18 month(s) | Warnings: Protect against moisture. | Warnings: Do not dismantle the appliance. | Mouse weight: 65.5 g | Mouse battery type: AA | Keyboard battery type: AAA