Description : This antenna is compatible with Motorola Startac ST7797, ST7860W, ST7867, ST7767W, ST7768W, 6500, 3000, and Talkabout P8097, P8167, T8097, T8160, T8167. It does not work with CDMA cell phone. Great for meetings and other places where ringing cell phones aren't appreciated. Lets you turn off your ringer and still know when calls are coming in. It requires a screw driver for installation.