1. Practical: Bluetooth audio recording speaker supports music playback and music recording, multifunctional and practical. It has the function of recording Bluetooth-compatible audio or line-in audio as an MP3 file and saving it to a U disk or memory card. 2. ABS Material: The Bluetooth audio recording speaker is made of ABS, which is environmentally friendly and durable, with a beautiful appearance and unique functions, advanced audio processing technology, larger drivers, and more powerful amplifier modules provide clear sound. 3. Multifunctional: This wireless music recording speaker allows children to watch early education videos while recording the audio of the teaching material and saving them to a local U disk or memory card, allowing children to listen to the audio of these teaching materials through this cassette player. 4. Long Battery Life: The speaker has a built-in 1200mAH large-capacity 18650 lithium battery, which only takes 2 hours to fully charge, and can last for about 5 hours of audio recording (depending on playback volume) when fully charged. Enjoy wonderful music, portable, no need to worry about power supply string. 5. Applicable: Any audio and video you like (video background music, movie dialogue, audio novel, etc.) can be saved locally through it, and then you can directly enjoy it locally or share it with friends for various scenarios. The speaker supports most Bluetooth-enabled smartphones, as well as audio and video playback devices with a 3.5mm output port.