This Power Bank Bluetooth Speaker make you enjoy full stereo music from your cell phone or other bluetooth devices when cycling,climbing,running or walking.Portable charger power bank back-up mobile power 3000mAh,you can use the 2 in 1 multifuntional bluetooth speaker to charge your mobile phone or other digital electronic products via USB connection.42 in 1 multifunctional bluetooth speaker only paired one bluetooth device at a time,compatible with mobile phone,pad,notebook and anyotherbluetooth devices.This multifunctional bluetooth speaker power bank will give you stereo sound quality and portable charger power bank at the same time. Do you enjoy listening to music Whether cycling,climbing,running or walking,no matter you are on the travelling or at home?If so, the 2 in 1 multi-function power bank bluetooth speaker is exactly what you've been looking for.