Features: The DSP99 is a digital auditory effects processor for karaoke. It is equipped with precise analog circuit signal auditory devices to produce a variety of outstanding singing effects and mixing functions, providing a total of 99 digital reverberation effects. Equipped with BT5.0, independent sound adjustment for music, reverberation and microphone enhances the singing experience It supports 1-channel microphone/BT5.0/6.5MM input, providing a more convenient input experience that is not affect by latency, or other unfavorable conditions. Suitable for individual users who love karaoke, family gatherings, KTV entertainment venues. Both professional singers and amateurs can enjoy a high-quality music experience. Specifications: Item: DSP99 Karaoke Mixer Size:about 27x15.5x4.50cm/10.63x6.1x1.77in Component: Metal Connection： BT5.0 Package Includes: 1Set DSP99 Auditory Mixer note: Due to problem of lighting effect, there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.