3.5mm TRS (Tip-Ring-Sleeve), also known as a mini jack or ⅛" jack, is a common audio connector used for headphones and portable audio devices.
Characteristics
- 3.5mm diameter barrel
- Three contacts: Tip (left), Ring (right), Sleeve (ground)
- Stereo audio capable
Common uses
- Headphone outputs on CRT TVs
- Auxiliary audio inputs/outputs
- Portable device connections
Variants
- TS (Tip-Sleeve): Mono, two contacts only
- TRRS (Tip-Ring-Ring-Sleeve): Stereo + microphone, four contacts
