(Image credit: Shutterstock) Most of us use Bluetooth every day for tasks such as streaming audio, sharing files, connecting to devices, and making hands-free calls. That's because Bluetooth technology is typically designed for short-range communication between devices, and while the first generations had a very limited range of up to 30 feet, it can now achieve over 200 feet in real-world conditions.Tech startup Hubble Network, which has secured a $20 million Series A funding round from the lik...