beautifully made. STURDYNESS: It is a little less sturdy than anticipated (judging by the pictures of the product I expected a stronger plastic) but it is still strong enough to do the job of holding my shoes in a dry and safe place. Pros:Touch button very usefulCharges headphones fastVery fast connecting, pull earbud out of case and its connected (Bluetooth 5)Connect to one earplug, it handles connecting to the other and running the music simultaneously. 5 and usually have to go for a 7 as I have wide feet. Etwas Fußbett hätte ich mir noch gewünscht - naja, man kann nicht alles haben. The recipients will be grateful. If you are picky about sound this is the speaker to get. Me gusta que es fácil y rápido de instalar lo que no me gusta es que permanece el foco prendido I actually prefer this feel than the heavy premium feel of the 4. ? ?Wires are tangle free? ?Exact audio quality? ?CONS?? ?Due to very light weight design,tends to fall out from your collar if you wear a? no-collar T-shirt? ?Blinking Led persist for 10sec after you press a button? ?Playback controls are good,but could have been made better? ?When you try to increase the volume from max volume,a beep can be? heared,which makes you miss 3 seconds of the ongoing audio? ?Less stability on collar? Sony vs OnePlus BWZ?? ?XB400 has True sound quality, in all aspects.