What is the range of the Bluetooth connection?

The range is very dependent upon the environment and is greatly reduced by interfering structures such as walls and even people. It also depends on the orientation of both the Enforcer and iPhone. Testing with optimum setup, direct line of sight and the antenna housing facing the connected phone, the range should be around 10 m. With the antenna housing facing away from the phone and with some interfering objects, the range can be significantly reduced.

The alignment for optimum range is shown in the above drawing. Note that placing your hands over the antenna housing or over the top half of the iPhone can reduce the range.