How about one more thing to add to your bag of mobile phone tools along with your AfterShokz earphone and extended battery? This would be the Sleek Mobile 4G-A cell phone repeater from Wilson Electronics, about a hundred bucks. Part number 815326. There are different models if you are not an AT&T user. I have had an older model in my bedroom for quite some time with an antenna on the roof. It boosts a 1 bar signal to 4 bars within 20 feet of the unit. For mobile use, the benefit is not only fewer dropped calls but also better data transmission for running a server based GPS. I used this Sleek Mobile this weekend on a stretch of road in the Napa foothills where phone coverage disappears for about 8 miles. Using this device, I had coverage for at least 4 out of those previously dead 8 miles including service for the Seeing Eye GPS app. I learned about POIs I didn't know existed in them there hills. When I got to my destination, I put the device in my room and it helped turn a weak signal into a usable one. This device consists of a flat cradle with arms to hold your phone in place. It works by contact. You don't plug your phone into it. The Sleek Mobile has either a 4 inch or 12 inch mag mount antenna to put on top of the car. It has a USB cable to plug into the cigarette lighter adapter, which comes with it. It is pretty simple although you do have cords to manage. There are much more powerful models for home or office use. In fact, Wilson nicely donated a 70DB repeater to the Enchanted Hills Camp and it works great. I know this is not something most people need for personal use but it does make sense if you do business on the road and need to have a good connection more of the time. Mike Michael May, CEO Sendero Group, Davis California Developers of accessible GPS Sendero Phone: 888-757-6810, extension 101 Home Office: 530-757-6900 Email: MikeMay@xxxxxxxxxxxxxxxx Sendero web: http://www.senderogroup.com General GPS web: http://www.AccessibleGPS.com Mike May Personal: http://www.CrashingThrough.com To change your email settings (unsubscribe, digest only, or vacation mode): http://senderogroup.com/social_media/email.htm Additionally, to unsubscribe send an email to gps-talkusers-request@xxxxxxxxxxxxx with "unsubscribe" in the Subject.