product descriptionNote: (Please read before ordering) (1) Number of paired devices: Can only be paired with one phone at a time. If you want to change to another phone, simply disconnect the previous phone and pair it again with the new phone. (2) Automatic pairing: If you have successfully paired with your phone, the next time you pair, please turn on the phone's Bluetooth in advance, and then turn on the iTape Bluetooth box adapter. The adapter will search for the phone's Bluetooth and then pair automatically. (3) The box contains: Bluetooth strap and USB charging cable. (4) When playing while charging, the current of certain models will affect the sound quality. (5) This product has multiple functions and is a bit complicated. After receiving the goods, if you really feel that the use is not smooth, you can send an email and the seller will help you solve all problems.: