Excerpt: This was bought as a way to coordinate a wedding shoot. There is no way to use this radio in a silent environment. Even when you have a headset plugged in the "call" feature outputs to the speaker! Additionally, the device can be put into tone and vibrate alert or tone alert, there is no vibrate only even though the manual says it can. It says that it is weatherproof but there is absolutely no seal around the battery cover.
Conclusion: Bought a pair of Cobra CXT545's for a Canadian wilderness fishing trip on a 86K acre lake. They worked beautifully . Excellent range, clarity and durability Could not be more pleased. The features and options make these radios an excellent value.
Summary: These were purchased as a replacement for an 8 year old Cobra system of Walkies, they have always worked well though with a somewhat limited range. They have a powerful receiver and this often works against them due to many people on the same channels. They are a highly useful tool when separated people have to work together.