New and high quality Stable characteristics, high reliability 1. The MOST Diagnostic Kit helps you quickly locate fault points, whether the issue is with the motherboard, receiver, or cable connections 2. The optical fiber loop allows removal or addition of a single vehicle component without affecting the car's fiber-optic network 3. Can diagnose and identify fault points at any node in the MOST (Media Oriented Systems Transport) network 4. Bluetooth phone modules often fail when stereo sound becomes intermittent or absent; by disconnecting the fiber from the phone module and connecting it to the fiber loop, the Bluetooth phone function is deactivated and audio returns to normal immediately Attenuation: less than 180 dB/km Working temperature: -55°C to +85°C Color: black Material: plastic Size: 11.5 cm x 2.5 cm x 1.2 cm (L x W x H) Core diameter: 1.0 Finished product diameter: 2.3 x 2 Package Contents: 1 x Male Connector 1 x Female Connector Only the above package content, other products are not included Note: Light and display differences may cause slight color variations between the image and actual item. Measurement allowance: +/- 1-3 cm