Support Bluetooth: Use mobile phone Bluetooth to synchronize, avoid music and inconsistent pronunciation, comfortable. Support MP3: There is a USB input port at the bottom of the microphone, which supports MP3 format music playback, and the function is extremely powerful. Support Recording: Bring the microphone-headphone connector cord and link the mobile phone song APP to record the recording function. Long Playing Time: 1200mAh battery up to 6 hours of singing, enjoy the smartphone APP KTV karaoke effect. Intelligent Compatibility: Compatible with mobile phones, computers, and tablets; Support many K software. Multi-purpose: Bluetooth speakers, karaoke singing, car audio, music recording, interviews, podcasts, and so on. Specification: Material: ABS shell, Aluminum alloy handle, Steel mesh cover Color: Rose Gold/Gold Frequency Range: 100~ 10khz Input Voltage: 5V Battery Capacity: 1200mAh Connection Mode: Mobile phone Bluetooth Applicable Places: Family, KTV, outdoor, car, stage, etc.