Cellphone-Mate CM110 Patch Antenna Place this convenient lightweight antenna on your cell phone to magnify and boost your cell phone signals. The CM110 combined with a CM2000 Dual Band Signal Booster works great. It will greatly enhance your conversational experience- so get one today. The CM110 is used as an passive antenna, and for maximum effectiveness should be placed as close as possible to the wireless device’s antenna.. Also leaving the option to use the adhesive on the back side for a static position. Features Frequency Range: 806-894 MHz / 1850-1990 MHz Easily stick onto your cell phone Connects to a signal repeater Convenient transportational antenna Dimensions:140mm X 21mm *Life Time Warranty available with Cellphone-Mate Cellphone-Mate CM110 Patch Antenna