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If you want any 3G/4G GSM external/outdoor puck antenna, please consider 195MM 868/915MHz NB IOT GSM rubber antenna with sma male connector, the NB iot antenna connector can customized with SMA Male, RP-SMA Male, BNC Male and N Male, external NB IOT whip antenna, cowin has 20 RF engineers and support customized antenna.

NB-IoT improves device power consumption, system capacity, and spectrum efficiency, and is supported by all major mobile device, chip, and module.

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