Feature:1. TM4 four-channel mixer, compact sudio system for studio recording, DJ equipment, online live, etc.2. Support both Power Bank supply and 110-220V universal voltage, can be used outdoors and indoors, portable and convenient to use.3. Using USB Input for connecting devices to play MP3, MP3 part with independant volume control.4. 3-band EQ on all channels, the HI control govems the high frequency range, the MID control boosts/cuts the midrange frequencies, and the LOW control raises/lowers the gain of the bass range.5. Built-in reverberation delay effect, 48V phantom power supply, and BT function.Specification:Features:TM4 four-channel mixer, compact sudio system for studio recording, DJ equipment, online live, etc.Support both Power Bank supply and 110-220V universal voltage, can be used outdoors and indoors, portable and convenient to use.Using USB Input for connecting devices to play MP3, MP3 part with independant volume control.3-band EQ on all channels, the HI control govems the high frequency range, the MID control boosts/cuts the midrange frequencies, and the LOW control raises/lowers the gain of the bass range.Built-in reverberation delay effect, 48V phantom power supply, and BT function.Specifications:Model: TM4Noise: -80dBFrequency Response: 20Hz-20kHz ±0.5dbTHD : ≤0.03% @ 1KHzSNR: ≥82dBMax Input Level of Mic: 16dBuMax Input Level of Circuit: 30dBuMax Input Level of Stereo: 20dBuHeadphone Output: 200/300mWOther Output: +20dBuItem Size: 20 * 24.6 * 5.8cm / 7.87 * 9.69 * 2.28inItem Weight: 970g / 34.22ozPackage Size: 31.5 * 24 * 8.5cm / 12.4 * 9.45 * 3.35inPackage Weight: 1400g /49.38ozPackage List:1 * Mixing Console1 * Charging Adapter1 * User ManualPackage List:1 * Mixing Console1 * Charging Adapter1 * User Manual