The Mini-Mark antenna represents the latest generation of cellular On-Window antennas. The unique design outperforms other antennas of similar size. The Mini-Mark, with a 3 1/2″ whip (89mm), provides up to 3 dBi gain.Features:Flexible Mini-Mark whip never needs to be removed for carwashes.Low profile, mounts on front or rear glass.Ideal for use with all hands-free car kits or phone adapters.Specifications:Frequency: 824-894MHzGain: 3dBi maximum.Nominal Impedance: 50 ohmMaximum Power: 10 wattsCable: RG-58, 15 feet (4.5m)Mount: ABS plastic, 2″ dia. (51mm)Whip Material: Flexible rubber-covered radiator.Whip Length: ~3.5″ (89mm)Glass Attachment: Double-sided tape.Whip Connection: Adjustable screw-in/lock-down ball.Cable Attachment: Integral to inside coupling box.