CHAMBERLAIN 4330E, 4332E, 4333E, 4335E compatible remote control replacement transmitter, 433.92Mhz rolling code keyfob. ( NOT MADE BY CHAMBERLAIN ) High quality CHAMBERLAIN compatible remote control replacement! ( NOT MADE BY CHAMBERLAIN ) Fully compatible with CHAMBERLAIN 4330E, 4332E, 4333E, 4335E remotes! Latest technology 433.92Mhz rolling code remote! Battery and keychain included! Distance up to 100 meters!