> For the complete documentation index, see [llms.txt](https://docs.behringer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.behringer.com/connections-and-controls.md).
# Connections and Controls
## FLOW 4V
### **Front Panel**
1. Touchscreen for swipe and tap-based interactions
2. Multi-purpose knob for navigating and adjusting the selected parameter on the touchscreen
3. STOP/RECORD/PLAY: transport controls for recording to SD cards. Their behavior depends on the Timecode Mode and Pre-Roll settings; see Transport Controls for details.
4. Red infinite knobs for immediate access to the channel trim of channels 1–4
### **Left Side Panel**
5. MIC/LINE input 1
6. PHONES: 1/8" TRRS jack for both monitoring and talkback (TRRS connector: tip = left out, 1st ring = right out, 2nd ring = headset microphone input, sleeve = ground)
7. STEREO OUT: 1/8" stereo line output, for connecting to a camera audio input
8. StageConnect HOST port, providing power and clock sync to other StageConnect devices
9. StageConnect CLIENT port, for receiving remote power and connecting to a StageConnect Host device
### **Right Side Panel**
10. MIC/LINE inputs 2–4
11. USB-A port for automatic recording backup on USB flash drives
12. Stereo AUX IN, or input for external timecode SYNC in Free Run mode
13. USB 2.0 Type-C port for audio transmission, remote control or power delivery
14. USB-C port for power delivery (5–15 V, 3 A)
15. Micro-HDMI port, enabling the FLOW 4V to follow a camera's recording status (HDMI-CEC)
### **Rear Panel**
16. Bluetooth antenna for remote control and talkback. See 4V App for details.
17. Hex wrench, 3 mm (included)
18. SD card slot for recording multitrack sessions on FAT32-formatted cards
## FLOW 4VIO
### **Front Panel**
1. MIC/LINE inputs 1–4
2. PHONES OUTPUTS 1 and 2: 1/4" TRS jacks (StageConnect downstream channels 1–2 and 3–4 from FLOW 4V)
### **Left Panel**
3. USB-C port for power delivery (USB-PD, 5–15 V, 3 A)
4. USB 2.0 Type-C port for audio transmission, remote control or power delivery
5. StageConnect HOST port, providing power and clock sync to other StageConnect devices
6. StageConnect CLIENT port, for receiving remote power and connecting to a StageConnect Host device
### **Right Panel**
7. Headphone output 1 level control
8. Headphone output 2 level control
9. StageConnect status LED: green = OK, yellow = occasional transmission errors, red = disconnected
10. Power LED
---
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