The GEN4 BlueTipz Receiver is ready to go! Users can expect double the distance on receiving alerts from your Transmitters, and also transmitting signals back out to your phone when compared to our original model. The GEN4 BlueTipz Receiver can act as a beeper/blinker if you don’t have a required smartphone. Also, if you do have the required smartphone, it can act as a booster and repeat the signal from your BlueTipz transmitters to your mobile device. This works great for permanent/portable shacks.