The Mini Portable Bluetooth Speaker by Engine is a stylish and compact square-shaped speaker in a sleek green color. Made of metal & acrylic it features 3W RMS power for high-quality audio output. With Bluetooth connectivity and a battery capacity of 500mAh, it offers convenient portability for on-the-go use. The speaker is designed with a 5V audio input and includes a charger for easy charging. Perfect for universal compatibility, this mini speaker is a versatile and reliable choice for enjoying your favorite music anytime, anywhere.