8m EMK OD4.0mm Square Port to Square Port Digital Audio Speaker Optical Fiber Connecting Cable(Black) Filter-Blank Disc Watch crown connector flex cable

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Battery life (non-rechargeable): 24 months

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Trackball roller technology

8m EMK OD4.0mm Square Port to Square Port Digital Audio Speaker Optical Fiber Connecting Cable(Black) Filter-Blank Disc Watch crown connector flex cable1. The use of high quality optical fiber, strong transmission signal, the core is not affected by electromagnetic interference and radio frequency 2. High density wire, not easy to bend, soft and moderate, long service life 3. Fangkou to Fangkou, strong versatility, most of the equipment with light interface meet the duration 4. Optical heads are used at both ends to effectively reduce signal distortion 5. High quality interface, plug resistant, fast