Hong long is the rear camera cable in the package?

For A129 series:

The standard rear cable for the A129 Series Dual Channel Box is 6M, if 6M is not fit for your car, you can buy the dashcam on our official website and remark the length of the cable you need in the order.

You could also choose and buy other lengths from the following link:

https://www.viofo.com/en/accessories/93-691-viofo-a129-series-rear-cable-for-dual-channel-models.html#/32-cable_length-6m/63-used_for-a129_duo_a129_duo_ir_a129_pro_duo   

NOTE:  A129 Plus rear cam is not compatible with other A129 series.

FA139 series:

The standard rear cable is also 6M, but we have many kinds of length for theA139 rear cables:

You could also choose and buy other lengths from the following link:

https://www.viofo.com/en/accessories/213-327-viofo-rear-cable-for-a139-2ch3ch-dash-camera.html#/32-cable_length-6m