Calus Extreme Boom+3 Bluetooth Speaker.

This is a Calus Smart Live Extreme Boom+3 portable Bluetooth speaker. It features heavy-duty deep bass and RGB lighting effects. Connectivity options include Bluetooth, AUX, U-disk, and TF-card playback modes. The speaker has a built-in battery and supports hands-free calling. It has an output of approximately 60W and a peak power of 120W.