1. These kids earbuds have multiple functions such as folds, adjustable length, Bluetooth connection, cable connection, TF card, etc. There's always something you want. 2. The cute cat ear shape and flashing light design of the headphones are easy for children to love and make them more impressive. Add fun when listening to music, watching movies or videos. Note:1. TF card only supports 16GB memory; only supports MP3 format songs, other formats cannot be decoded. 2. When the headphone cable is connected, the indicator light on the headphones is off and the LED light of the cat ear does not light up. At this time, pressing all buttons on the earphone (including cutting songs, adjusting volume, etc.) will not work 3. In Bluetooth pairing mode, long press the M button to adjust the LED light on the cat's ear and the light flash mode cannot be set. Bluetooth Device Name:P47M.