Vktech Indoor 800-2500MHz Ceiling Antenna for Cell Phone Signal Repeater Amplifier Broad band, Stable performance Low VSWR, High gain Support the popular communications system currently Frequency Range : 806-960MHz and 1710-2500MHz This product is designed to boost multiple users with maximum power. It is best used in the following applications: 1. GSM/EGSM/CDMA800/3G/WLAN/WiMax/AWS 2. Wireless communications and data transmission system repeater 3. Indoor omni-directional coverage