BUT: I already have the 2nd unit, as the first in the supply had a loose connection, so that the LEDs have lit up sporadically. Report this if you sit up at night to household chores and is constantly irritated by on / off of the LEDs change. Maybe yes, the coming loose contacts with effects on the LEDs or USB transfer rates, as with the previous speakers, often before - but I have received a perfect device for easy exchange through Amazon, with whom I (at least yet) am very satisfied! The favorable price / performance ratio you may well expect anything else.
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Update 7/3/2015: Even the 2 Mousepad had after six months a lighting failure in the form of an intermittent contact, which is why I have refrained from further use. I can not recommend the product accordingly!
