1??[Two Way Bluetooth Connection] Portable CD player supports two way Bluetooth wireless connection with built in Bluetooth 3 technology, it can be used as a signal transmitter to connect with Bluetooth headphones and speakers, or as a receiving amplifier to connect wirelessly with smartphones, laptops. 2??[Rechargeable] The CD player has a built in 1200mAh battery that can be fully charged within 4 hours. Using the included earphone supports 12 hours of earphone playback and can be connected to your car via a 5mm Aux cable (Bluetooth is not supported) to enjoy music while traveling. 3??[Multi Format And Multi Port] This CD music player supports most CD formats such as CD, CD R, CD RW, MP3, WMA. AUX connection to other devices such as external speakers and cars with 5mm AUX jacks is available via the AUX 5mm input. There is also a USB port. 4??[Compact And Lightweight] You can enjoy the same song with your family or friends. The CD player is small and lightweight, you can easily take it anywhere and enjoy your favorite CD music at home, doing sports, in the car, or while traveling. 5??[Gift Choice] Portable CD player is a great choice for your loved one, family member, classmate, friend, or workmate. With the ability to repeat and adjust playback speed, it's especially great for those who are learning a language or singing.