**********COVERAGE FOR ONE TO TWO ROOMS- The Anycall triple bands signal booster provides phone reception for up to 4, 500 sq ft or two rooms; the powerful 70dB repeater with outside and inside antennas (10dB and 8dB) can better find and amplify the signal, allowing everyone to enjoy fewer dropped calls, better voice or call quality and faster data speed within its coverage area. *****COMPATIBLE WITH MANY US CARRIERS- The Anycall home at&t phone signal booster will suit for many U. S. carriers and networks; including: AT&T, Verizon, T-Mobile, Sprint, Cricket, Metro pcs, U. S. ular, Straight Talk and so on. 700/850/1900MHz (Band 12/17/5/2). *****CELLULAR SIGNAL BOOSTER- The Anycall multiple band 2G 3G 4G phone signal booster for home and office will boost your 2G 3G voice, call quality and 4G LTE data signal up to 32X to get fewer dropped calls, high audio quality and faster uploads and downloads. Supports multiple users simultaneously. *****AUTO GAIN CONTROL & EASY INSTALLATION- The Anycall