Escort Visor Clip Mount for Radar and Laser Detectors
From ESCORT

Brand: Escort
Model: Visor Clip Mount

This clip mount holds a radar and laser detector firmly on a car's visor, letting the driver confidently detect signals from X, K, and Ka bands while on the road. Escort recommends using the visor clip only when the top of a car's windshield isn't obscured by dark tinting. If your car does feature a dark-tinted windshield, consider using a windshield suction cup mount instead. The visor clip fits the current Escort Passport 8500 X50, Solo S2, and Passport 7500S models, as well as earlier Passport 8500, 7500, 6800, 5000, 4600, 4500, and 4200 units and RD-5110, Solo 5, and Solo 4 detectors.

When suction cups won't work
This device does exactly what it says it will do: mount your detector to the visor. And it works well for that purpose.

Escort advises that mounting the detector on the visor will reduce laser detection due to the tint on the windshield. However, I have a hard time with suction cups in the winter. This product lets me securely mount the detector until the windshield warms up enough to use the suction cups.

stay organized with a visor clip
I've used a 8500 with a visor clip on my 2004 suburban since new, and the detector works flawlessly up there. Couple this with a direct wire cord either to the fuse block or the powerport on the rear view mirror and you have a truly built in look. I laugh when I see people with the suction cups and wires going all over the place. What a mess !! 2 other reasons to use a clip:
1) my neighbor who is a police officer has told me that it REALLY irritates him when he pulls over a car and their "fuzzbuster" is in plain view stuck to the windshield. Any hopes of getting off with a warning thereby go down the drain.
2) thieves see a detector stuck to the windshield and SMASH, its stolen !!