Features: This model is a professional multifunctional vehicle-mounted marine professional compass. The user can use the correction tool attached to this product to correct the deviation of the compass, and the power cord that comes with the compass can be connected to an external vehicle or ship power supply to supply the power problem of the compass' own light. Considering factors such as the convenience of the driver's observation and habit, this product deliberately reverses the magnetic steel of the product, and the compass pointing direction of this product is the forward direction of the car. (opposite direction to regular compass products). Material: plastic colour: black Package Contents: 1 x Nautical compass Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.