This only 4 days I received it but I can tell a lot about this mini speaker, I use it with a tiny iPod Shuffle, and I can tell you that the sound is louder than one could imagine over that size is very small, small inconvenience, or not for the battery life, you can control the volume only from our audio device, autonomy is good, a with just under 8 use max volume but it's more than okay! I hesitate between the X-mini and this one, and more now because for the same price it was a brand article, stronger, and that will naturally last longer, the x-mini sells through its many colors and design, otherwise the soundshooter and much better! Very solid, rubber coating, it does not slip and does not vibrate on the floor. to put in his basket without hesitation surfers :) PS: for my part very fast shipment ordered before 27 August 16h, received on 29 morning!