It is much more complicated than that. That 700kbit/s figure is theoretical performance under ideal conditions: one device, one host, no interference.
In the real world, you get a lot less bandwidth. In my office building I see 300-400kbit/s of real throughput. The radio also only has one transceiver, if you connect multiple devices, they have to take turns broadcasting which cuts your bandwidth roughly linearly proportional to the number of nodes.
Also remember that Bluetooth and WiFi share the same spectrum. A high power or very busy WiFi network nearby will also drop Bluetooth bandwidth. You also get a precipitous drop in bandwidth if there are other Bluetooth devices nearby, as they all have to share the same spectrum.
There's a lot of effort put into mitigating these problems, but either way the real world performance of Bluetooth is much, much lower than theoretical figures. Streaming useful audio over a link like this is not a trivial problem.
At work, I'm currently trying to cram ten separate audio streams into a Bluetooth link for reasons. We're switching to WiFi.
In the real world, you get a lot less bandwidth. In my office building I see 300-400kbit/s of real throughput. The radio also only has one transceiver, if you connect multiple devices, they have to take turns broadcasting which cuts your bandwidth roughly linearly proportional to the number of nodes.
Also remember that Bluetooth and WiFi share the same spectrum. A high power or very busy WiFi network nearby will also drop Bluetooth bandwidth. You also get a precipitous drop in bandwidth if there are other Bluetooth devices nearby, as they all have to share the same spectrum.
There's a lot of effort put into mitigating these problems, but either way the real world performance of Bluetooth is much, much lower than theoretical figures. Streaming useful audio over a link like this is not a trivial problem.
At work, I'm currently trying to cram ten separate audio streams into a Bluetooth link for reasons. We're switching to WiFi.