So what's a good number range to look for? We suggest just about anything involving a four and six, but seven and higher could be a premium ranking and capable of withstanding complete water submersion. Having said that, this speaker is quite bulky and large. It's got a built-in https://www.bluetoothspeaker.top/wholesale-bluetooth-speaker-transparent-mecha-design-heavy-subwoofer-for-audio-use/