Locking your channel may help you avoid missing any calls. Scans At any given time, there may be a given amount of people on any of the 14 channels allocated under the FMS frequencies. A scan button on most 2-ways radios helps you scan for an available frequency, or a frequency you're partner may be transmitting on. Alerts Many 2-way radios have what are known as call alert tones. These come in their forms of little beeps, rings, vibrations, and even tunes that alert a user that a message is arriving.
Some radios have optional jacks for additional speakers and microphones.
Most 2-way radios operate on AA batteries, some use rechargeable batteries. There are many helpful extras that make your 2-way traveling life easier like belt clips, protective cases, and accessories for hands free operation. 2-way radios are made for rugged use, which is why some of them are water resistant and have great ergonomic designs. Please let us know. Images are for visual reference only.