Download and Record and Delete Music Long press the button for 3 seconds to start recording, and release the button to stop automatically. The maximum recording time is 16 minutes. Can download your own mp3 music, also record through MIC. You can connect to the computer to delete the built in music. Personalize your settings by adjusting the playback mode (PLAY=01-02) and volume (VOL=01-30) in the "config.txt" file. This allows you to achieve a personalized experience.16-Minute Recording Module This 16-minute recording sound module is nice for personalizing greeting cards, music boxes, or other creative presents. Embed it in a greeting card to bring your wishes to life, place it in a music box to create a unique musical experience, or incorporate it into other creative presents to add a personalized touch. Whether you're giving it to friends, family, or loved ones, it adds joy and surprise to your creative endeavors.Easy Installation Back of the sound module is equipped with adhesive stickers. You simply need to stick it onto the surface of your greeting card, present box, easter presents, 3D printed models or any other object, and it will securely attach to your creative creation. This way, you don't need any additional tools or materials to easily combine the sound module with your present, bringing surprise and joy to the recipient.We have own factory, Diverse style. Support customization Welcome to email us!16 MB Storage Capacity This sound module boasts a spacious 16MB memory, providing ample storage space to accommodate multiple favorite songs or recordings. By connecting the module to a computer using a USB-Type-C cable, you can effortlessly add new audio files to the internal storage. This opens up a world of possibilities for your creativity, allowing you to easily modify and update the stored audio content according to your preferences and needs.USB Charging Recording Module This recording module features a rechargeable design and is equipped with a big-capacity 3.7 V battery (230 mAh)fully charged takes approximately 90 minutes,played for about 120 minutes. It can be conveniently charged via the Micro USB-Type-C interface. This design extends the battery life, allowing for prolonged usage without the need for battery replacement. You can easily charge it by connecting it to a computer or using a charger, ensuring a full battery and enabling long-lasting usage with repeated charging cycles.