Review on 📻 Retevis RT27 Walkie Talkies: Rechargeable, Heavy-Duty Two-Way Radios for Adults - 5 Pack" by Vincent Pavelko

These radios are great. They have plenty of channels and some nice features that offer limited privacy even in the shared frequency range. With a cable (yes buy one, you'll need it) and supporting software (from the retailer, very responsive) you can set a few options. These include battery saver/scan cycle intervals, voice prompt, and multiple options per channel including configurable DCS and/or voice scrambling (distortion). Remember that rock climbing has limits. This is less of an encryption and more of a reordering of the sample fragments (with an interval of 10ms?). This introduces a slight propagation delay, but makes conversations difficult to understand. However, if you speak slowly, you can still understand 80% of the words. Although it's better than nothing. On the hardware side, they are very durable, have a long range and good battery life. The charger is well constructed and can hold/charge the battery with or without the radio connected (allowing you to charge a spare on your own). The charger is self-limiting and intelligently recharges when needed if the radio remains active in the cradle. The only downside I found is that they have a VOX function. limited. Even at its highest level, the mic sometimes struggles to hear/hold compared to a PTT button enough to use reliably. It might work better with a headset, but it's not very functional with a built-in microphone. Overall this was the only downside I could find and given the price and all the other features this is a great buy for the money. UPDATE July 22nd: About a month later, these radios are still impressing. There are a couple of nice features that are unmarked (e.g. low battery voice alert) and scanning for open and scrambled DCS channels. Used on a 12 acre property with a large ravine and all sides were clearly audible. Including at the far ends and in canyons where even cell phone signals and other radios tend to drop and/or disappear. Very impressed with the clarity and strength in general. Battery life is also substantial, with standby times typically around 2 days.