Great product and great service. Highly recommend.
Both work but you can't tell one from the other same sound. I complained to the company About this,in two weeks after I received a call from a Sherry from Shenzhen China Hong Kong They sent me a new receiver that the sound is different on all four channels at no cost. they are also coming out with a solar transmitter no battery to charge. Reliable company
Excellent for Long driveways!
We have an extremely long driveway and could not hear when someone arrived. Installing the monitor gives us a heads up when a guest arrives. We were afraid it would be too sensitive, but has performed extremely well!
This works great!