Note: The item is with EU plug adapter. Please confirm the voltage of your area before placing an order.DescriptionThis simple designed tool can let you solve your weak signal problem easily. This device is strong to boost multiple users with maximum power, is cost effective solution with weak outside signal. An necessary tool to improve your phone use experience.Feature- Small size, practical, easy to install and easy to use. It provides the ultimate solution in any area where cellular communications can not work well due to leak of signals. - Easy installation & operation, build-in indoor antenna and no interference. It could also improve indoor electromagnetism environments, protract cellular battery life and reduce radiation of cellphones. - for house, home, office use. - Included 2 different kind of antenna, let you use it more easily and conviently. - Warm Tip: Dear buyer, Due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!Specification-Color: Golden. - Material: Metal+Electronic Components. - Size: 16 x 11 x 2.3cm. - Frequency Range: Up Link 1920-1980MHz , Donw Link 2110-2170MHz - Power: -70DBM ~ -40DBM/FA (1.23MHz) - Gain: UL:65Db/ 3db DL:70Db/ 3db - Max Output Power: 20dBm/3dBm - Impedance: 50 - Power Supply: AC 110/240V (used Adapter 5V dc) - Seclusion: >70dB - Compact Design: Indoor Use - Connect Mode: N Female connector - Ambient temperature: -10C~60C