Wilson Electronics 815125 Sleek 4G-V Smart Technology II Signal Booster for 700/800/1,900 Mhz Frequencies (Booster Only) - Retail Packaging - Black (Discontinued by Manufacturer) Boost Verizon Wireless 700 Mhz LTE As Well As 3g & 2g Cellular Signals On 800 Mhz & 1,900 Mhz Boosts Both Voice & Data Communications Provides A Strong, Reliable Signal Even In Weak Signal Areas Faster, Cleaner 3g & 4g Data Transfers More Than 20 Times The Power Of Cellular Phones Alone