DECT 6.0 technology operates in the 1.9GHz frequency range giving you longer range and amazingly clear sound. The reason why you get better range and sound is because at this frequency other wireless devices such as wireless routers and microwave ovens operating at a 2.4GHz or 5.8GHz will not interfere with your calls operating at 1.9GHz. Add up to 6 additional handsets with just one phone jack.
