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zBoost TRIO SOHO cell phone signal booster boosts indoor signal for voice and AT&T 4G data signals. The advanced zBoost ZB575-A boosts AT&T 4G LTE, CEL and PCS. The zBoost TRIO SOHO captures the reliable cellular signal you have outdoors and rebroadcasts it indoors so you can enjoy clearer, faster and more reliable service without interruption.
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