Kmashi's waterproof Bluetooth speaker is $22 at Amazon

Kmashi's waterproof Bluetooth speaker is on sale for $22 with coupon code AQTSBZHK from Amazon, a savings of $38 from its normal price of $60. Not only is the speaker portable, durable, and waterproof, but it also has a built-in 4800mAh battery pack to keep your tablet or smartphone charged as well. If used to just play music, the 4800mAh battery that is inside will last for 35 hours of playback, or you can use it for a combination of phone charging and music playback.

The speaker also has a 3-mode LED flashlight, and it comes with a bike mount if you want to use it on your long rides. Remember, you'll need to use coupon code AQTSBZHK to get the full savings on this speaker.

$22 at Amazon

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