TRRS stands for Tip-Ring-Ring-Sleeve, a type of audio connector commonly used in headphones and microphones. It features four contact points: the tip, two rings, and the sleeve. This configuration allows for stereo audio output and a microphone input, making it popular in devices like smartphones and laptops. The TRRS connector is often found in 3.5mm audio jacks, which are standard in many consumer electronics. It enables users to enjoy high-quality sound while also using a microphone for calls or voice commands. Understanding TRRS is essential for anyone working with audio equipment or looking to connect various devices.