Built-in dual-core DSP digital chip, the sound card can switch multiple scene modes arbitrarily and supports dual microphones, dual live broadcasts, dual headphones. It also supports one-key elimination of original sound, one=key noise reduction, multiple groups of sound change fine-tuning and other functions. Very suitable for web live broadcast, mobile K song, music recording, etc.Features:MULTIPLE SOUND EFFECTS AND SCENE MODES: The sound card support various scene modes and multiple sound effects, can change your voice like that of child, male, female, etc., and adding more fun to the sound.LARGE BATTERY: Built-in 1200mAh large rechargeable battery, powering your entertainment time durably, avoiding frequent charging, eliminate your low battery anxiety.HIGH COMPATIBILITY: Universal USB interface for charging and for connecting to the computer, standard 3.5mm plugs for stable audio signal input and output. Compatible with mainstream phone and computer.WIRELESS CONNECTION: Wired and wireless connection are both available. Wired connection for smooth signal transmission and BT wireless connection for convenience.EASY OPERATION: Every single button is with clear markup for indicating particular function. Visual light indicator for showing working status. Adjusting knobs can satisfy fine-tuning.Specifications:Battery Capacity: 1200mAhPower Input: DC 5V 2APower: 5WRecording: 16bit/48kHz, 90dB signal to noise ratioReplay: 16bit/48kHz, 100dB signal to noise ratioSignal to Noise Ratio: 106dBItem Size: 23.5 * 15.5 * 3cm / 9.3 * 6.1 * 1.2inItem Weight: 620g/ 1.4lbsPackage List:1 * Sound Card1 * USB Cable2 * Audio Cable1 * Users Manual(English)