1、Multifunctional Karaoke Microphone: it can be used as wireless speaker, music player and music recorder, support with TF card, audio cable, and wireless BT connection, compatible with Android and iOS mobile phone. 2、BT Connection: the built-in 5.0 series BT chip can effectively reduce the connection stuttering, and the effective connection range of the microphone is up to 10m. It supports the playback of all lossless format sound sources. 3、Built in High Fidelity Speaker: imported stereo pronunciation unit allows you to experience 360 degree KTV stereo sound effect, and the sound quality is beyond imagination. 4、Intelligent Noise Reduction Chip: it effectively filter out the noise of the surrounding environment when recording the sound, so as to make the recording effect more pure and perform well even in a noisy environment. 5、Cordless Microphone: built in 1800mAh large capacity battery with long using time, easy to be recharged. Features: Multifunctional Karaoke Microphone: it can be used as wireless speaker, music player and music recorder, support with TF card, audio cable, and wireless BT connection, compatible with Android and iOS mobile phone. BT Connection: the built-in 5.0 series BT chip can effectively reduce the connection stuttering, and the effective connection range of the microphone is up to 10m. It supports the playback of all lossless format sound sources. Built in High Fidelity Speaker: imported stereo pronunciation unit allows you to experience 360 degree KTV stereo sound effect, and the sound quality is beyond imagination. Intelligent Noise Reduction Chip: it effectively filter out the noise of the surrounding environment when recording the sound, so as to make the recording effect more pure and perform well even in a noisy environment. Cordless Microphone: built in 1800mAh large capacity battery with long using time, easy to be recharged. Independent Reverberation Adjustment: reverberation can make the sound full and three-dimensional, the reverberation can be adjusted separately according to the demand, very convenient with one click operation to cancel the sound. Specifications: Color: Black / Gold / Red (Optional) Material: Metal Charging Voltage: 5V/1A Horn: 57mm 45W 65 passive film Frequency Response: 60Hz~18kHz Distortion: <0.5% BT Transmission Distance: 10m straight line distance Built-in Battery: 3.7V 1800mAh lithium battery Item Size: 256 * 85mm / 10.08 * 3.35in Item Weight: 326g / 11.52oz Package Weight: 459g / 16.21oz Package Size: 27.5 * 10 * 9cm / 10.83 * 3.94 * 3.54in Packing List: 1 * Microphone 1 * USB Cable 1 * Audio Cable 1 * Manual (English) 1 * Microphone 1 * USB Cable 1 * Audio Cable 1 * Manual (English)