Have you seen a 3-in-1 stereo speaker with power bank and stand function? My friend bought one last week, and he has shown us how cool the speaker was several times. He told us that the battery capacity of the speaker is 4000mAh, maybe can charge for my phone 3 times. It is so convenient that I can enjoy a mini music system via this creative power bank when the phone is charging, and I don’t need to keep the phone on my hand for better watching angle. It has two 3.5mm jack, one for music, one for stand function. The speaker is portable and practical. However, I concern about quality of the speaker, more functions do not mean better quality. Does someone have any recommendation for creative speaker?