X7 48V Live Broadcast Audio Mixer Professional Microphone Live Sound Card 1. Suitable for recording karaoke, speaker amplification, games, hosting meetings and online live broadcasts, etc. 2. Built-in DSP digital audio signal processor, providing smoother and more stable performance and enhanced functions. 3. Users can adjust the microphone volume and EQ (treble, midrange, bass) according to personal timbre, volume, environment, output device, and singing situation to achieve better effects and experience, and increase 16 levels of noise reduction and fade-out speed. 4. Functions: including sound cancellation, built-in playback, Bluetooth accompaniment playback, pause, etc. 5. Equipped with 6.35mm instrument interface and 48V XLR interface, and also includes an LCD screen for adjusting display functions. 6. There are four customizable effects and 12 built-in preheat effects. Specifications: 1. Signal-to-noise ratio: 102dB 2. Dynamic range (AD): 102dB 3. Total harmonic distortion (AD): -90dB 4. Signal-to-noise ratio: 108dB 5. Dynamic range (DA): 108dB 6. Total harmonic distortion (DA): -92dB 7. Total power consumption: about 450mA 8. Battery capacity: 3000mAh 9. Rated input: DC 5V1A 10. Product size: 21x13.8x6cm