Description: 1. compatible: Built-in wireless compatible, easy to connect. Press the mode switch key to switch to compatible mode. 2. 4 Channel: This wireless 4-channel o interface controller is an ideal way to mix o from MP3, microphone, and compatible to connect devices. 3. USB interface: This mixer has a USB port that can be connected to a computer and used as an o output and input interface for playback and recording. 4. Tuning: , treble and bass, reverberation and volume can be adjusted freely, multi-stage tuning is stress-free. 5. Strong compatibility: Compatible with musical instruments, microphones, small speakers, power amplifiers, headphones, computers, U disks, etc. 6. Wide range of uses: Suitable for home use, stage performances, live broadcasting, recording, etc. Specifications: Product name: o Mixer Color: Black Material: Plastic Plug: EU Size: About 16 x 19 x 5cm/6.3 x 7.48 x 1.97inch(L x W x H) Package Includes: 1Pc x o Mixer 1Pc x Adapter Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.