The Bluetooth karaoke microphone made of aluminum alloy is a wireless dynamic microphone with an integrated speaker. The high-quality Bluetooth module allows it to be used as a speaker, playback, and recording device. It is compatible with various karaoke apps. The microphone features a 2-way connection that supports both Bluetooth and wired connections. To use it, the phone must be connected to the microphone via cable or Bluetooth, and the desired karaoke app must be opened. It can connect with all common smartphones. The microphone supports microSD cards with a maximum size of 32 GB (not included) and has a song switch. The Bluetooth range is up to 10 meters. To reduce noise, the microphone is equipped with a 3-layer filter mesh. The multifunction buttons allow for adjustments to music, echo, and volume. Thanks to the 2200 mAh Li-Ion battery, it can operate for four to ten hours on a single charge. The charging time is approximately two hours. The audio sensitivity of the microphone is 115 dB. The microphone measures 20 x 10 x 6 cm, and the speaker's frequency range extends from 100 Hz to 10 kHz. The microphone operates with a charging voltage of DC 5V.