The Mini Karaoke Speaker, complete with a wireless mic and soft carry strap, boasts a built-in rechargeable battery and a compact, portable design. It offers various input options, including Usb, MicroSD, and Aux. The speaker grill features Rgb lights with six color-changing modes. It provides five fun voice-changing effects, such as Baby, Male, Female, Deep, and Shout. You can stream music via Bluetooth 5.3, with a transmission distance of up to 10 meters. The speaker has an output of 5W, a frequency range of 60Hz-20KHz, and a speaker impedance of 4 ohms. The charging voltage is 5V, and it delivers a playtime of up to 5 hours at 50% volume, with a charging time of 2.5 hours.