Cobra AM855 Two-Way Radios, 2 Pack
Most two way radios are sold on range alone, which is a shame, because the thing that decides whether a pair of radios stays useful for years is far more ordinary: how easily they get charged. The Cobra AM855 pack answers that with a two port dock. Both handsets stand in one cradle, on one plug, in one place. Nobody hunts for a cable, nobody arrives at the trailhead with a flat radio, and the pair is ready every time somebody reaches for them.
What comes in the AM855 box
Two radios, the two port charging dock, a micro USB cable, belt clips and rechargeable batteries. That is a complete kit rather than a starting point, which is worth checking against anything else you are considering. Plenty of radios in this class arrive expecting you to supply your own cells and your own charger, and the cost of both tends to close the price gap quickly.
Sixteen channels and 121 privacy codes
Sixteen channels give a group somewhere to move when the one you started on gets busy, and 121 privacy codes filter what you hear on whichever channel you land on. The codes are not encryption and should never be treated as such, but they do keep your handset silent while other parties on the same frequency go about their business. In a crowded environment, a campsite over school holidays or a large event with several teams working, that filtering is what makes the radio pleasant to carry rather than an irritation on your hip.
Range, read three ways
The maximum range is quoted as up to 12 kilometres, 300,000 square feet, or 25 floors. Open ground with clear line of sight gets you the first figure. The square footage figure is the practical one for a venue, a farm or a market, where obstructions are low and scattered. The floor count applies inside a building, where concrete and steel absorb far more signal than distance ever does. Radios in this class do not defeat terrain, and no manufacturer can promise otherwise, so choose the number that matches your ground and set expectations accordingly.
Voice activation, scanning and tones
Voice activated transmission lets the radio work while your hands are busy, which is the whole point on a build site, at a shoot or while riding. Channel scan sweeps for active traffic, useful when part of your group has changed channel without telling anyone. Five selectable tones give each handset a recognisable alert, so a group of four is not all reaching for their belt at the same chirp.
A full day of runtime
Battery life is rated at 18 hours of continuous use, measured on a 90 percent standby, 5 percent talk and 5 percent listen duty cycle. Real world use rarely exceeds that ratio, so a full day of marshalling, hunting or working is well within reach on a single charge. Drop both handsets into the dock at the end of the day and they are ready before breakfast.
Size, weight and water resistance
Each unit weighs 114 grams and measures 176.5 mm by 56 mm by 47 mm, which is compact enough to clip and forget, and long enough to carry a usable antenna. The radios are water resistant to the rating shown in the specifications, meaning rain, spray and damp hands are no trouble, though they are not built for submersion. Keep them out of the dam and they will handle everything else a South African weekend can produce.
Charging habits that keep radios alive
Rechargeable handsets fail for one boring reason: they get stored flat. The dock solves that by making charging the default resting position rather than a task somebody has to remember. Leave the cradle plugged in wherever the gear lives, in the garage, the office or the tack room, and put the radios back in it the moment you are done. A pair treated that way is ready on demand for years, while an identical pair left loose in a drawer will be dead on the day you finally need them.
Who should buy the AM855 pair
Anyone coordinating people across ground where phones are unreliable or too slow. Convoy drivers on gravel, hunting parties, site foremen, event crews, parents at a large campsite and anyone who has ever stood on a ridge waving both arms at a vehicle that cannot see them. Two handsets get you started, and further pairs join the same channel and code without any setup beyond turning the dial. The AM855 is a sensible upgrade path too: because everything runs on the same licence free band, you are never locked into buying more of one brand to grow the group.
Set both handsets to a channel and code, confirm contact before you split up, and keep the dock plugged in somewhere obvious. That is the entire operating manual, and it is why radios like these still outperform a phone the moment coverage disappears.
Features
- 16 Channels and 121 Privacy Codes
- 10+ km range
- Water-resistant (IPX2)
- Voice-Activated Transmission (VOX)
- 5 selectable tones
- Channel Scan
- Compact and Lightweight
Specifications
| Brand |
Cobra |
| Maximum Radio Range |
Up to 12 kilometres, 300,000 square feet, 25 floors |
| Number of Channels |
16 |
| Number of Privacy Codes |
121" |
| Waterproof |
IP54 |
| VOX |
Yes |
| Power |
| Rechargeable Battery |
Yes |
| Battery Type |
2000mAH Li-Polymer Battery |
| Battery Life |
Extended 18 hours of continuous usage (90% standby / 5% talk / 5% listen)" |
| Unit Dimensions |
| Weight |
114 grams |
| Length |
56 mm |
| Width |
47 mm |
| Height |
176.5 mm |
Package Contents
- 2x Cobra AM855 Two-Way Radios
- 1x Micro-USB Cable
- 1x Two-Port Charging Dock
- 1x Belt Clips
- 1x Rechargeable NiMH Batteries
