Item Type: Bluetooth MicrophoneMaterial: Aluminum AlloyCharging Voltage: DC5V/ 9VWorking Voltage: 3.6~4.2VCharging Port: Mini USBUSB Interface: Standard USB InterfaceMemory Card Interface: Standard Memory Card InterfaceOutput Power: 8WAux Interface: 3.5mm AudioOutput Bluetooth Version: 5.0Built-in Polymer Lithium Battery: 1800mAhSupported Device: Mobile Computer (Wired Independent Speaker)Signal to Noise Ratio: 80dBFrequency Response Range: 100Hz-10KHzPackage List1 x Microphone1 x USB Cable1 x Audio Line1 x Manual1With it, you can karaoke wirelessly. The stable bluetooth connection will bring you highquality music enjoyment. 2It has a wide range of applicability and can be used for friends gathering, parentchild entertainment, and even webcasting. 3Multi-layer noise reduction technology can effectively suppress noise, beautify the human voice and highlight the original sound. 4The dazzling colorful lamp is adopted, the lighting changes with the rhythm of the music, making the singing more contagious. 5Five sound modes enable the microphone to have more ways to play, and the surround sound, provides you with an immersive sound experience.