Herbicidal composition comprising: a) a herbicidally effective amount of a compound of formula, wherein the substituents are as defined in claim 1; and b) an amount, effective for herbicide synergy, of mesosulfuron, mesotrione or flufenacet. The porosity of the cell growth matrix may be modified by the selection of particles of appropriate diameter. Based on the telephone selection information, the caller then verbally selects one of the cordless telephones to be rung.