The maximum range of Bluetooth beacons typically varies depending on the specific type and standards of the beacon in use. In general, most Bluetooth beacons can reliably transmit up to approximately 30 meters without any physical obstructions, with a typical operating range of around 2 to 5 meters, depending on the transmit power.
I guess if you're hiding in the cupboard it's a problem, and the searcher already knows your BT address.
Capacitors are small. How will you ever know if power is off at the main board and across the system?
Merely_a_conduit from below knows
The maximum range of Bluetooth beacons typically varies depending on the specific type and standards of the beacon in use. In general, most Bluetooth beacons can reliably transmit up to approximately 30 meters without any physical obstructions, with a typical operating range of around 2 to 5 meters, depending on the transmit power.
I guess if you're hiding in the cupboard it's a problem, and the searcher already knows your BT address.
A lot of modern phones has secondary batteries imbedded in the chip sets just to power all the spy tech
You still use smartphones?
Mylar phone cases