Blade Buster Antenna Perfect For Laptops, Shelf's, Window Blinds, Wires, Books, ECT. Helps with a signal in my area i get an extra bar with this antenna, No software needed, just plug the Antenna into the side (Small Like Ear Phone jack) of AT T Momentum Modem and your ready to serf the Internet at a Faster Speed. Plugs Directly Into AT T USB Connect Momentum 4g LTE 1 NEW Multi-Band 3G/4G Antenna with clip to hold on Laptops, Computer Screens and more Directional - World-Band - Supports All Wireless Carriers 5-Band Multi-Mode / US European (AMPS HSDPA HSUPA EDGE EVDO 3G NET-G GPRS UMTS UMTS2100 CDMA WCDMA CDMA2000 TDMA GSM) Frequency(MHz):850/900/1800/1900/2100 Bandwidth(MHz):70/180 VSWR ? 2.0 Gain : 4.5dB Max Input power(W):50 Input Impedance(?):50 Polarization:Vertical Size 7/8 Inch Wide Cable length 25.5 Inch, (Long Enough For any Laptop) *Clip mount allows you to easily attach and remove to back or side of laptop lid/screen Shipping and Handling: Fast N FREE USPS First Class Shipping Items will be shipped out within 48 hours after payment cleared. VIa USPS First Class Mail NC Residents to pay Sales Tax 7% Return / Refund Return is accepted within 30 days after the buyer's receiving the item. If this item is defective upon receipt, customer has up to 30 days from date of receipt for exchange of a new one. Include your name, address, item, daytime telephone, how you paid, and if you are requesting a refund or exchange. After getting the returned item, we will refund the customer at the item's price ( excluding the shipping costs to and from).