Features 1、FUNCTIONS AND USES: If your device has only one microphone or musical instrument interface, the number of expansion interfaces can be increased through the machine to achieve the purpose of multiple input 2、5 CHANNEL: Microphone input expander supports 5 inputs and 1 output, mixing 5 inputs into 1 output, and the volume of each channel is independently adjustable 3、WITH REVERBERATION: The 5 channel microphone instrument input expander is equipped with reverberation function, and the reverberation size of each channel can be adjusted independently 4、STRONG MATERIAL: Microphone input expander adopt excellent aluminum alloy shell, light weight, possess good heat dissipation effect, long service life 5、INDICATOR STATUS: The microphone instrument input expander mixer indicator blinks four times continuously to indicate 4 grids of power, three times to indicate 3 grids of power, and so on, long bright when full charging Specifications: Item Type: Microphone Instrument Input Expander Input Output: 6.5mm Mono Charging: TYPE C interface, DC5V Battery: 1 x Li ion battery(not included) Gain: 0db/10db, switchable by key Indicator Light Status: Flash 4 times continuously indicates 4 grid power, 3 times indicates 3 grid power and so on, and so on, fully charged light on continuously Material: Aluminum alloy Package List 1 x Mixer 1 x 6.5mm Sound Cable 1 x Charging Cable