Item Type:MicrophoneMaterial: Plastic + MetalColor: BlackHorn Power: 4 3WSignal Impetuosity Ratio: 85DBFrequency Response Range: 100 - 10KHZAudio Source Interface: 3.5mm stereo headphone plugPower Supply Type: USB power supply/Rechargeable lithium battery (shipped with built-in battery)Battery Capacity: 1200mAhCharging Time: 3 - 5HoursPlay Time: 5 - 8 Hours with medium volume on full chargeHow to Use:Long press the power button to turn on/off.Wireless karaoke function:1. Power on.2. Turn on the Bluetooth of the mobile phone, click "Pairing Connection", and a prompt sound will appear, indicating successful connection.3. Adjust the voice volume and reverb strength of the microphone to the appropriate position.4. Start karaoke.Phone Recording:1. Open the karaoke software in your mobile phone, such as for Tianlai karaoke, for KuGou music or other song recording apps, choose your favorite song, and start recording songs according to the above singing methods.2. Debug and save the song: just follow the instructions of the karaoke software.Selfie Function:1. Short press "No.1'' to switch from Bluetooth mode to selfie mode.2. Turn on Bluetooth, search "Shutter", and click "Connect".3. Open the camera interface of the mobile phone and press "No.6" or "No.8" to take a picture.