The BTR17 uses the THX AAA 78+ headphone amp, previously used in the FiiO M23 DAP. The four-channel fully balanced design ...

We can’t find anyone else in our archive who’s made a Bluetooth dongle in this way, but we’ve certainly seen sniffing of HCI commands to reverse engineer a speaker’s communications.

Also called a "Bluetooth dongle." See dongle. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

Prior to BT 4.1, devices transmitted to a hub either built into the computer or in a stand-alone dongle. Branded as Bluetooth 3.0 + HS (High Speed), it started the connection via Bluetooth but ...