If you’re heading out into areas where cellphone service is either iffy or possibly non-existent, consider taking a SureCall N-Range Cell Phone Range Extender along with you. It’s claimed to enhance the transmission of both voice and data by linking to distant cell towers. The signal-boosting device consists of a shark-fin-type antenna and a phone-mounted antenna that attaches to your vehicle’s air vent. The SureCall is compatible with all cell phones and signal types (including 4G LTE) as well as all cell carriers throughout North America. Order one for $200 from www.bestbuy.com.