A Datasheet BT85x Series Bluetooth v4.2 Dual-Mode .
BT850-ST - Bluetooth v4.2 Dual-Mode USB HCI Module
A Datasheet BT85x Series Bluetooth v4.2 Dual-Mode USB HCI Module Version 1.0 BT85x Series Datasheet REVISION HISTORY Version Date 1.0 12 Jan 2018.