i gues they doesn't work out of the uk, let me find them on the us page
http://www.newegg.com/Product/Product.aspx?Item=N82E16823162032&cm_re=tt_esports_poseidon_zx-_-23-162-032-_-Product
http://www.newegg.com/Product/Product.aspx?Item=9SIA2TE1S45651&cm_re=Tesoro_Tizona_G2N-_-0GA-003J-00017-_-Product