No. I have a waterproof nec terrain. The headphone jack only has a simple non watertight flap to keep dust out. While every other orifice has rubber seals. I th

No. I have a waterproof nec terrain. The headphone jack only has a simple non watertight flap to keep dust out. While every other orifice has rubber seals. I think mfgrs have figure out waterproofing headphones long ago.