Multifunctional speaker - Multifunctional speaker - 5.0 wireless speaker in ABS and bamboo finish. It has a built-in 10W wireless charger and a 4000 mAh power bank. Built-in battery with a capacity of 1800 mAh. DC 9V/1.1A output. Bamboo is a natural product, so there may be slight differences in color, pattern and size.