美国采购需求：狗狗训练项圈、无线狗围栏、防吠项圈、GPS追踪器、驱狗器、防吠项圈

I'm looking for a wireless fence system designed for two dogs. The main concern I have is that the collars are sometimes beeping even when the dogs are not moving out of the designated safe zone. It's crucial that the system operates reliably to avoid unnecessary stress for the dogs. Could you provide more details on the features of your wireless fence products? I'm particularly interested in understanding how the collar technology works and if there's a way to minimize false alerts. Additionally, any information on range, ease of installation, and customer reviews would be really helpful for making a decision. Thank you!