External 3g antenna with bracket 1, Rubber or flexible plastic,Frequency: 433.92/ ... 2,Gain:9-13dBi 3, Plug: SMA External 3g antenna with bracket:1, Rubber or flexible plastic,Frequency: 433.92/ ... /2100MHz2, Usage: In conjunction with a wireless 433.92 RF receivers 3, Gain: 9-13dBi4, Wall mounting bracket: Stainless steel or painted ... others, Connector: SMA (M) or others External 3g antenna with bracket