1、Rechargeable CD Player: With a built in 2000mAh battery, there is no need to use AA batteries or always plug the charging cable into the CD player when playing music. The portable CD player can be fully charged in 4 hours. Playback endures 5 hours with built in speaker. 2、Portabel CD Player with Speaker: This portable cd player built in speaker produces loud sound, so listening directly from the speaker is another option than wearing the stereo earphones. It is also an outdoor speaker, which could be taken and used where you go. 3、Anti Skip and Memory Playing: The CD player has an anti skip function to ensure uninterrupted playing even when exercising or driving. And this function will be activated automatically once we turn on the player. The memory playing function enables us to continue playing the tracks played the last time we turn off the player. 4、Wide Compatibility: This compact CD player can support most CD formats such as CD, CD-RW, MP3. AUX connection with all other listenable devices such as external speakers and cars with 3.5mm AUX jack via AUX 3.5mm input. There is also a USB port. You can enjoy the same song with your family or friends whether at home a car or travel. 5、Special Functions: Burn the CD to the USB flash disk, save the music to the USB flash drive. CD player built in microphone, you can also record to U disk, convenient and fast.