wireless mouse works on the Bluetooth protocol then why one mouse cant be operated by other Bluetooth receiver?

wireless mouse works on bluetooth technology that is 2.4ghz, then why same mouse can not be operated with another bluetooth receiver?
how the communication is unique between one mouse and its bluetooth receiver.

bwrussell10 days ago

I'm a little confused by the wording but if I'm reading this correctly you've got 1 mouse and 2 receivers and want to either switch between receivers or connect to both at once?
Assuming the above is correct the answer is that each mouse and receiver are paired at the factory and neither has the ability to be re-paired by the consumer.
Also, if you were trying to connect both relievers simultaneously it won't ever work, regardless of if you can or can't change the pairing because Bluetooth is a direct connection, not a broadcast.