Model Number : 61.85915575.17Colour Name : blackConnection : WirelessThe keys barely make a sound, so you can hear the song You're listening to instead of the sound of typingSo you can work or play in more places like your comfy couch the wireless connection virtually eliminates delays, dropouts and interference and gives you a range of up to 10 meters (33 feet)It helps protect your information by encrypting data transfer between the keyboard and receiver with one of the highest levels of data encryption availableA 2.4 month keyboard and 5 month mouse battery life mean you can go for months without the hassle of changing batteriesThe keyboard’s minimalist design not only blends in with your décor it serves a purpose no extra space between the keys makes it compact as well as sleek