iHome - PowerValet - Sleek Alarm Clock with Qi Wireless Charging and USB Charging - Black

Even though loudness depends on the receptor, I wouldn't say it has a very loud alarm, it is average. However, the high pitch sound that produces its very annoying in the mornings and it works for me. If its close to you (ex. nightstand) it should work.

Your phone has to be "Qi" compatable. If it's not get a "Qi wireless charger receiver charging adapter" from Amazon. I don't know if BestBuy sells them. They run from $9 to $15, just make sure it will fit your phone.

yes If your phone is Qi compatable and there is no metal case on phone.

Dear Customer, Unfortunately, this unit will not work with a metal or magnetic phone case.

Yes, this unit features Clock Display Dimmer Control with adjustable brightness levels.