No one likes dropping offline, especially if you need to stay in contact. Get expert tips for boosting your cellphone signal on iPhone or Android.

HT is an open-source hardware VHF or UHF radio designed to plug into the USB-C port of an Android smartphone and turn it into a handheld ham radio ...

Most smartphones have a tiny hole at the bottom of them but it's not always clear what it's for. Here's what that hole is for ...