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 transceiver or cable connections 2. The optical fiber loop allows removal or addition of a single vehicle device without affecting the car's fiber-optic network 3. It can diagnose and identify fault points when a node in the MOST (Media Oriented Systems Transport) network fails 4. Bluetooth phone modules are often damaged when stereo sound becomes intermittent or there is no sound; the fiber head of the phone module can be disconnected and connected to the fiber loop, deactivating the Bluetooth phone function and restoring audio immediately Fitment for Attenuation: less than 180 dB/km Working temperature: -55C to +85C 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 is included; other products are not included Note: Light and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm