MOST Fiber Optic Loop Bypass Male and Female Kit Adapter for BMW Mercedes-Benz Stable characteristics, high reliability 1. The MOST Diagnostic Kit helps quickly identify fault points, whether due to motherboard transceiver issues or cable connection problems 2. The optical fiber loop allows removal or addition of a single vehicle component without affecting the car's fiber-optic network 3. Enables diagnosis and identification of faults at any node in the MOST (Media Oriented Systems Transport) network 4. Bluetooth phone modules often fail when the stereo is opened, causing intermittent sound or no audio. By disconnecting the fiber head from the phone module and connecting it to the fiber loop, the Bluetooth phone function can be deactivated, restoring normal audio output Specifications: Attenuation: Less than 180 dB/km Working Temperature: -55°C to +85°C Color: Black Material: Plastic Dimensions: 11.5 cm x 2.5 cm x 1.2 cm (L x W x H) Core Diameter: 1.0 mm Finished Product Diameter: 2.3 mm x 2 mm Package Contents: 1 x Male Connector 1 x Female Connector Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm. Only the above items are included; other accessories are not included