The Amaya BD31 wireless Bluetooth speaker 10400mAh power bank with 3 sound effects is a versatile and powerful device that can be used for a variety of purposes.

As a wireless Bluetooth speaker, it can be used to stream music from your phone, tablet, or laptop. It features a powerful sound system with three different sound effects: bass boost, treble boost, and normal. This allows you to customize the sound to your liking.

In addition to being a speaker, the BD31 is also a power bank. It has a built-in 10400mAh battery that can be used to charge your phone, tablet, or other devices. This makes it ideal for use on the go or when you don’t have access to an outlet.