Good to know- This pair of walkie talkies has a range of up to 12 km, so you can keep in touch with your hiking buddies even in areas with patchy coverage- The floating, waterproof design gives you peace of mind when you're out fishing or kayaking- Use the VOX mode to for hands-free chatting - the walkie talkie starts transmitting at the sound of your voice- With 16 channels and 121 privacy codes, your conversations can stay private- It can save 10 channel and code combinations, so it's easy to call pals on different frequencies