Champion Sports 录音喇叭（蓝色/白色，20 瓦）
800 码范围。 功率 20 瓦。 免提多任务处理。 录制长达 60 秒的留言，只要您想到，可用作留言中心。 非常适合在事件或紧急情况下进行说明和指导。 需要 8C 电池（不包含在供货范围内）。 Champion Sports Recordable Megaphone 将成为他们的焦点！ 此 20 瓦特的扩音器有 800 码范围，具有 60 秒的可刻录信息，这将重复制作给出说明、指示或紧急留言。 您无需担心听！
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Update- not pleased with the battery covering. If has often come apart and requires effort to get it to stay. The rest of the unit is solid but perhaps placing the battery pack under the microphone was not the best idea.
The volume from 7 to 10 was loud and clear; it is compact and lightweight. The wrist strap allowed me to hang it off my belt, so I could drop it to be hands free intermittently. I have worked with larger models from various manufactures, in the $100+ price range, over the years and almost universally the battery cover and latching mechanism is the first breakage point and next is the cone. This megaphone has a well engineered battery cover, and although the latch is nothing more than a plastic projection that interlocks with another piece of plastic, it looks substantial enough to last for awhile. Not forever I'm sure, but long enough to feel I've gotten my money's worth. I don't know if the battery cover is replaceable once the latch does break. The cone seems thick enough to stand up to a reasonable amount of being set down and picked right back up repeatedly.
However there are a few things I didn't like - the volume indicates settings of 1 to 10, but numbers 1 through 5 emit nothing, 6 emits a whisper where your own voice is louder, and at setting 7 it finally is loud enough to be heard at a distance. The siren setting is very loud and is the same volume regardless of volume setting number. The siren switch can accidently get switched on by a slight brush. In 5 hours of using this megaphone at a dock during a regatta where I am constantly switching to using my hands to assist boats get docked and then back to using the megaphone to direct incoming boats, I accidently activated the siren 3 times. I finally just duct taped it in the off position. Lastly, the first time I put batteries in it, I did not realize that I had not reseated the battery compartment completely back inside the unit; it stuck out just a tiny bit from it's original position. It took me a half hour to figure out why the battery compartment lid would not snap back on. The printed instructions did not help identify the problem. Once I pulled out the internal battery pack one more time and reseated it yet again, the back snapped on easily.
Summary - it works at the volume I need, voice clear without feedback, and the construction seems sturdy enough for the price. Both the battery latch and cone seem sturdy enough to stand up to the slightly rougher usage I require. A reasonable megaphone for the price, not a toy. But if higher usage in a more physically active application is needed, buy a more expensive megaphone.