Lenovo 4X31K03949 keyboard Mouse included RF Wireless + Bluetooth Hungarian Grey Weight___23.8 kg 8 mm Height 69 DMC HDO 8 mm Height 69 G335 vejer kun 240 gram Professional Wireless Rechargeable Combo Keyboard and Mouse Hungarian Keyboard Connectivity technology Wireless Device interface RF Wireless + Bluetooth Keyboard key switch Scissor key switch Keyboard language Hungarian Pointing device No Keyboard form factor Full size (100%) Numeric keypad Yes Keyboard keys operating life 10 million characters Windows keys Yes Programmable hot keys Yes Bluetooth Low Energy (BLE) Yes Security algorithms 128 bit AES Certification CECBBQBTUV MarkcTUVusFCCICIDAWPCBISSIRIMNTASDOCoSDPPINTCMICAITIRCMNCCBSMIMSIPVCCIJRFSRRCANRCETIICASAMINCOMSTAMoCUkrSEPROACIFACTRANTRATRCMOCICTINACOMNCCANRTCERTCNC AFTICANATELSUBTELIFETELTUV NOM Design Backlight No Product colour Grey Features Cable length 1 m Detachable cable Yes Number of devices supported 3 Power Power source type Battery Keyboard battery type Built in battery Battery technology Lithium Ion (Li Ion) Battery capacity 420 mAh Rechargeable Yes Battery recharge time 2 h Charging source USB Type C Mouse Mouse included Yes Form factor Ambidextrous Movement detection technology Optical Movement resolution 4000 DPI Buttons quantity 8 Scroll Yes Scroll type Wheel Programmable mouse buttons Yes Mouse battery type Built in battery Mouse battery technology Lithium Ion (Li Ion) Mouse battery capacity 380 mAh Mouse keys operating life 10 million characters Rubber grips Yes Operational conditions Operating temperature (T T) 0 40 °C Operating relative humidity (H H) 20 95% Weight & dimensions Keyboard dimensions (WxDxH) 437