Why Customers Choose ALPOWL Portable Audio Mixer: *ALPOWL multifunction 4-channel mixer console with sound card. It can meet users' many demands, such as home music production, live streaming, karaoke, and so on.Features:*The mixer is equipped with input gain and high and low bass adjustment, built-in 48V phantom power supply for direct power supply of condenser microphones, high-definition headset output port, MP3 player, Bluetooth receiver, with connected PC sound card.*Ultra-thin design, support USB/U disk (MP3) playback, built-in Bluetooth receive playback (controllable).*Built-in net-work host sound card. USB/MP3 Jack, USB Jack can be connected to U disk or MP3 and other portable audio equipment.*Built in reverb effect, stage equalization regulate, by adjusting knob to adjust the reverb depth and delay effect.*Small size and light weight, can be directly connected to the PC's USB to power supply directly; you can use mobile power bank and AC/DC adapter to power supply too.*Professional SINGOO team serviceFor any questions you are welcome to contact us at any time. Specifications:*Input Channels Mic input: Electronically balanced, disscrete input ConfigurationFrequency response: 10 Hz to 200kKzGain range: +14dB to +60dBSNR: 120dB E.I.N Line input :Electronically balanced Frequency response: 10 Hz to 130kHzGain range: -6dB to +38dBSNR: 95dB E.I.N *Stereco Channels Frequency response: 10Hz to 70kHz Gain range: Line:-8 to +15dB/Mic:+13 to +60dB SNR: Line:90dB/ Mic:104dB E.I.N Package List: 1 x AUDIO Mixer1 x USB cable1 x Power adaptor with USB port1 x User manual1 x Colorful box