Editing Bluetooth (section)

===Pairing and Connection===
In theory, up to seven devices can be ''connected'' to a host-side receiver at once, but in practice only three to four active devices are considered usable at once because of them sharing bandwidth. There are many other devices and protocols on the 2.4 GHz band, and interference from those could lower the practical use even more.<ref name="applebtfaq">Apple—[https://support.apple.com/en-gb/HT201171 Using a Bluetooth mouse, keyboard, or trackpad with your Mac]. Dated 2018-11-26. Retrieved 2019-01-13.</ref>

Hosts may also limit the number of simultaneous connected devices with the same profile: for instance allow only one headset at once but allow multiple keyboards.

The Bluetooth standard allows a host receiver to ''pair'' up to 255 devices, but the actual limit may be smaller depending on the receiver.
If the peripheral supports it, it could be ''paired'' to up to five hosts but be ''connected'' to only one at a time, unless it has "multipoint functionality".