1. A cutely designed children's MP3 player. The Oilsky M7 can help you cultivate a strong interest in music from an early age. It is equipped with a 750mAh rechargeable battery, providing a longer music playback time. It can play music for about 80 hours using wired headphones, approximately 39 hours with Bluetooth, and around 23 hours for the FM radio. (Note: The music playback time depends on the volume, songs, external speakers, and Bluetooth. Please refer to the actual time.) 2. This kids' MP3 player has a 32GB internal memory and supports a 128GB Micro SD card expansion (if needed). With Bluetooth 5.0, you can also connect Bluetooth headphones or a Bluetooth speaker to enjoy music wirelessly. [Tip: Mobile phones and cars cannot be connected via Bluetooth.] 3. On other interfaces, simply press?? to directly return to the music playback interface. It is easy for kids to operate. When playing music, press the power button to stop, and it will continue to play the song that was interrupted last time after turning it on. 4. This Bluetooth MP3 player is built - in with a professional intelligent digital noise - reduction chip. It supports a variety of audio formats, including MP3, WMA, WAV, FLAC, and APE. The external speaker can play the music and sounds that kids like, and they can also share the joy with their friends. 5. This baby MP3 player can meet your needs in other situations, such as FM radio, recorder, photo viewing, clock, pedometer, etc. We offer rock, funk, hip - hop, jazz, classical, electronic, and custom equalizer options.