5 Laws That'll Help the bluetooth speaker Industry
https://www.evernote.com/shard/s733/sh/a2fe77ae-18e8-4689-a3b4-4373d371a717/518752bec3423e1bd73cd5ef54ef0b58
Bluetooth is a radio or wireless technological innovation designed for short array data communications in the Industrial, Scientific and Clinical (ISM) band. The frequency assortment is from two.402Ghz to 2.480Ghz,