Specification: Item Type: Bluetooth Microphone_x000D_Material: Aluminum Alloy_x000D_Charging Voltage: DC5V/ 9V_x000D_Working Voltage: 3.6~4.2V_x000D_Charging Port: Mini USB_x000D_USB Interface: Standard USB Interface_x000D_Memory Card Interface: Standard Memory Card Interface_x000D_Output Power: 8W_x000D_Aux Interface: 3.5mm Audio_x000D_Output Bluetooth Version: 5.0_x000D_Built-in Polymer Lithium Battery: 1800mAh_x000D_Supported Device: Mobile Computer (Wired Independent Speaker)_x000D_Signal to Noise Ratio: 80dB_x000D_Frequency Response Range: 100Hz-10KHz Features: 1With it, you can karaoke wirelessly. The stable bluetooth connection will bring you high?quality music enjoyment. 2It has a wide range of applicability and can be used for friends gathering, parent?child 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. PackageList: 1 x Microphone 1 x USB Cable 1 x Audio Line 1 x Manual