About this product: 1. The microphone will automatically connect after the first connection. 2. If you want to disconnect the microphone, please turn off the Bluetooth on your phone or delete the device registration from the Bluetooth management list. 3. If you just want to listen to the music, please turn down the microphone volume to the lowest level. 4. The Bluetooth karaoke microphone uses a three-layer filter, which can greatly reduce the noise generated during singing. It also uses noise reduction technology to effectively filter airflow and wind noise, allowing you to always keep your singing clear. 5. The microphone uses a high-quality speaker. The upgraded bass diaphragm cavity improves the sound quality by 30%, bringing more impactful sound effects and more stable sound quality. 6. The 28 colorful LED lights on the microphone will flash with the rhythm. The higher the volume, the brighter the light will be. 7. Bluetooth mode (use Bluetooth microphone to sing) Note: If you want to use the karaoke microphone as a Bluetooth speaker, please turn off the echo and volume of the microphone. Bluetooth has a memory function and can automatically connect after the phone is restarted. Wired mode (singing and recording functions at the same time) Note: The Bluetooth function must be disconnected. 8. If you have a TF card (up to 32GB, not included in the package), you can insert it into the microphone, and then you can play music through the TF card. Output power: 5W, Battery capacity: 1200mAh, Charging voltage: DC 5V/1A, Frequency range: 100Hz-10kHz, Reverb mode: Echo effect, TF card: Maximum 32GB (not included), Maximum sound pressure level: >115dB 1kHz THD