No LEDs, not turning on, is it dead?

I left my speaker on the table for a few days, maybe a week… I tryed to turn it on, no led lights, no sound, no nothing

Tryed chargin whith the microusb, no led, no sound, no nothing

Tryed with the turn on button for 10 seconds, nothing

Tryed with the multifuntion 10 seconds, nothing

What do you suggest??

Thanks!!