Kaito Voyager Max KA900 Emergency Radio - Solar, Hand Crank & Dynamo Powered AM/FM/SW/NOAA Weather Alert Radio with Bluetooth, MP3 Player, Voice Recorder & Phone Charger (Black) - Perfect for Camping, Hiking & Emergency Preparedness

I absolutely love this radio. Previous models may have had a shortwave feature but lacked the ability to play MP3s from a micro SD card, another may have had bluetooth capabilities but no shortwave ( or vice versa). This model has everything combined in one radio, which in my humble opinion makes it one of the best radios in its price range. I've had mine for about 2 months now, using it every day and taking it everywhere I go. With 2 solid months of near constant use I have found very little negative to say about it. I'll get the minor complaints out of the way then get back to the praise.1) The maximum volume is more than sufficient for my needs but it isn't nearly as loud as it looks. You can easily hear it across the house if it's quiet but this radio can't compete with much noise. That being said, I don't think it was really designed to. It's more of a personal radio meant for listening while gathered around a campfire or sipping iced tea on the porch or, if necessary, while in the basement during a tornado.2) There is a slide on top of the radio that turns the reading light and flashlight on and off. It's possible for that slide to get nudged or moved without you realizing it which could drain the battery. You would probably notice the flashlight being on but the reading light is mounted under the solar panel. If the solar panel is in the "closed" position it is possible for the reading light to be on without you realizing it. This happened to me not long ago and the light was left on all night. I didn't catch it until the following afternoon and the radio still had a significant charge left. The display showed 1 bar which I have found will last for several hours with constant use. This tells me that either the reading light doesn't require much juice to operate, or the radio comes with a pretty good battery, possibly both. Either way, I was impressed. On a side note, when I first got my radio I held it upside down and the slide fell right out of it onto the ground. I picked it up and put it back and haven't had another issue with it since.3) While overall the radio itself does seem to be sturdy and able to withstand some abuse the plastic the body is made of looks to be a little brittle. For instance, I think if it fell of my bed onto a hardwood floor it would probably shatter into a million peices. I find myself being overprotective and careful whenever I take it with me somewhere. Not exactly a bad thing I guess considering what it is.4) One of the main selling points of this radio is it comes with an ability to charge the battery via a solar panel and a hand crank thereby allowing the user to listen to the radio indefinitely while away from any means of charging it the traditional way (ie, camping, disaster, alien invasion). I say "main" selling point because it is part of why I bought it. The solar panel and hand crank can and do charge the battery when used but they have limitations which I feel are described by the manufacturer rather well. Solar panels aren't very efficient at producing electricity, especially a very small one. This is by no means precise but if I were to guess I'd say it would probably take a week or 2 of direct sunlight to fully charge the radio. I don't remember what the manufacturer says so I could be way off, I'm only basing this on what I've seen while using my radio. The hand crank by my own experience isn't much better, maybe around 10 minutes of use with 10 minutes of cranking. Thankfully I already had a pretty good idea of what to expect from this before I bought the radio so I wasn't disappointed. If someone bought this radio expecting a full charge after sitting in the sun for a few hours they would likely be disappointed. Both methods of charging definitely work and have their merits. They would prove to be very useful in a pinch.Now on with the praise.1) It plays MP3s and can read a micro SD card up to 32gb. 32gb is a lot of audio. I have 2527 tracks on mine, with room to spare. I like listening to music, old time radio shows, podcasts, a little bit of everything. If there's nothing playing over the air that interests me or I'm in a place with little or no reception I just play something from the SD card. This is my favorite feature of the radio.2) It has a bluetooth feature that I have found to be more useful than I originally thought it would be. If I'm outside listening to something on my phone I like to connect it to my radio, it sounds much better playing through the radio.3) you have the ability to charge other devices using this radio. This comes in handy when you're camping with a tablet or whatever. Just plug your device into the back of the radio and the radio acts like a battery pack. There is a small switch near where you plug in your device that determines which way the charge needs to go, "in" or "out". When you charge the radio itself the switch needs to be in the "in" position. When you want to charge your device move it to "out".4) It can revive AM, FM, shortwave, and weather band. Having this many options makes it versatile and useful in many different situations. It also comes with a detachable antenna for shortwave that works great. Things like weather, show schedule, and physical surroundings ( buildings, mountains, etc) have a lot to do with your ability to pick up shortwave shows but it's a lot of fun when it happens.5) The flashlight and reading light are very functional and more than bright enough to serve their intended purpose. I have used both and am very satisfied with them.6) I like the handle. It makes it very easy to grab and go. It also seems to be very durable with a rubber hand grip in the middle.7) It has a microphone, perfect for dictation or recording a memorable event. I have not yet used this feature but I like having the capability.8) It has a lock function. This is useful if you're listening to the radio while on the go, as I often do. It prevents an accidental button push or knob twist from changing your radio station (or worse). While in lock mode none of the buttons (except the one you push to unlock the radio) will work nor will the top "tuner" knob do anything. For some reason though the bottom "volume" knob is still functional while the radio is locked. I have found this to be the case while listening to both "over the air" radio and MP3s. If this was intentional I'm not sure what purpose it would serve but I've had no issues with it.Overall despite the very minor imperfections I feel this is a very solid and useful radio and would definitely recommend it to anyone. I use mine every day and as I stated earlier have no real complaint or issue with it. I am very happy with my radio and, knowing what I know now about it, would definitely buy it again.