●【48Bit DSP】Six-channel DSP Karaoke pre-processing center, built-in arithmetic precision up to 48-bit DSP and up to 116dB dynamic range, AD/DA with 48kHz sampling rate, simple processing using British amplifier to make your singing more sweet . It has 48 kinds of DSP reverb effects, which can call up a variety of excellent singing effects and mixing functions. ●【Anti-whistling】This effect adopts independent feedback frequency shifting technology, which can effectively suppress howling, avoid sound collapse, and make your singing vividly and vividly, and will never affect the quality of audio output. ●【Bluetooth 5.1 & 5.1 Channel Output】This pre-effector adopts the latest Bluetooth version, which ensures the high quality of audio transmission. And with 5.1-channel output, it is compatible with more full sound effects, compatible with various power amplifiers, independent mid-high bass can adjust each audio segment, rich in details, and makes people's voice more attractive. ●【Low Frequency Enhancement Function】G51 specially designed the low frequency enhancement function in order to be suitable for the extension of low frequency. When the switch is turned on, it greatly enhances the strength of the low frequency without being muddy, making the bass more elastic. ●【Easy Operation】This effector does not need to be connected to a computer, and the audio effect can be improved by simple debugging. Manually adjust the operation to quickly get the sound you want. Suitable for family karaoke 0K, stage performances, weddings, concerts, outdoor performances and other occasions.