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This GOOBAY jack cable is used to extend an existing audio cable with a 2.5 mm audio connection. The cable transmits analog audio signals between devices such as walkie-talkies, cameras, phones, PDAs, and other portable devices with a 2.5 mm jack connection. The cable features a 2.5 mm jack male connector and a 2.5 mm jack female connector. This allows an existing audio cable to be easily extended so that devices can be connected over a greater distance. The cable supports stereo audio, transmitting two audio signals via a single cable, for example, a left and right channel. The connectors are equipped with gold-plated contacts that ensure a stable electrical connection and protection against oxidation. Specifications Brand: GOOBAY Cable type: jack extension cable Audio type: analog audio connection Connector 1: 2.5 mm jack male Connector 2: 2.5 mm jack female Connector type: TRS (3-pole) Mono / stereo: stereo Contact material: gold-plated Length: 2 meters Certifications: CE, RoHS, REACH, WEEE Explanation 2.5 mm jack: a compact audio connector that is smaller than the standard 3.5 mm jack connection. This connector is often used on compact devices such as walkie-talkies, cameras, phones, and other portable electronics. Jack female connector: a female jack connection into which a male 2.5 mm jack plug can be inserted to extend an existing audio cable. TRS connector: a jack connector with three contacts (Tip, Ring, and Sleeve). This allows two audio signals to be transmitted, enabling stereo audio. Gold-plated contacts: a thin layer of gold on the contact surface of the connector that reduces oxidation and ensures a stable electrical connection. Applications • Extending an existing 2.5 mm audio cable • Connection between walkie-talkies and audio accessories • Use with cameras and portable audio equipment • Connection between compact multimedia devices Types of jack connectors 6.3 mm jack: a larger jack connector primarily used with professional audio equipment, musical instruments, and studio installations. 3.5 mm jack: a smaller jack connector widely used in consumer electronics such as smartphones, laptops, tablets, and portable audio devices. 2.5 mm jack: a compact jack connector used with headsets, walkie-talkies, and specialized audio equipment. Explanation of jack configurations TS (Tip-Sleeve): a jack configuration with two contact points. The tip transmits the audio signal and the sleeve acts as ground. TRS (Tip-Ring-Sleeve): a jack configuration with three contact points. This allows two audio signals to be transmitted, for example, a left and right channel for stereo audio. TRRS (Tip-Ring-Ring-Sleeve): a jack configuration with four contact points. This type of connection makes it possible to transmit a microphone signal in addition to stereo audio via the same connector. Explanation of audio signals Balanced audio: an audio transmission method that uses two signal wires and a ground. Unbalanced audio: a form of audio transmission that uses one signal wire and one ground wire. Stereo audio: an audio system that uses two separate channels: a left and right channel. Mono audio: an audio system that uses only one audio channel. Explanation of certifications CE: indicates that the product complies with European directives for safety, health, and environmental protection. RoHS: European directive that restricts the use of hazardous substances such as lead, mercury, and cadmium. REACH: European regulation for the registration and control of chemical substances in products. WEEE: directive for the collection and recycling of electrical and electronic equipment. Ask a product question