I suspected my husband was a liar and cheater. Your gut instincts are never wrong but to prove that, I purchased a LandAirSea tracking device. It was the best decision I ever made. My suspicions were correct. This device was so accurate and undetectable. Although my marriage was unsalvageable, I take comfort in knowing I am no longer the gullible person I once was. I recommend putting the tracking device on something metal under a seat on the inside of the vehicle and turn off the lights to the device so it remains undetectable. If you suspect you significant other of being unfaithful this is hands down the device to purchase.