REGARDING THE NEW IHUNT BLUETOOTH SPEAKER!!! I have been getting a lot of emails about the location of the serial number to enter to register the speaker. My instructions say it is on the bottom of the speaker. The serial number is actually on the bottom IN SIDE the battery compartment. There is a date code on the bottom of the speaker. Please enter the serial number , not the date code. I am getting this fixed as quick as I can to make it more clear. Sorry for the confusion.