Bluetooth Live Sound Card 8 Modes Voice Changer Sound Mixer Board with 16 Sound Effects for Karaoke Live Streaming Black Item Type: Live Sound Card Material: Metal, Electronics Model: V8S Color: Black Support BT: Yes Chip Description: Pickup DSP chip digital signal processor, digital signal to the human voice, accompaniment sound effects through multi channel calculation, the sound quality is clearer and more stable, to ensure the singing and voice of the sense of hierarchy and space to make the live sound more rounded and three dimensional. Frequency Response: 20Hz-20KHz+3db Support Devices: Cell Phones, Tablets, Computers Battery Type: Built in 500mAh Polymer Lithium Battery (Included)