> Bluetooth version: BT 5.0
> PC connection: USB 2.0
> Bluetooth range: Up to 100ft/30m
> Bluetooth profiles: HFP 1.6, DIP 1.3, A2DP
1.2, Bluetooth Low Energy (BTLE)
> Bluetooth audio bandwidth: Narroband,
Wideband, A2DP
> Firmware update via Yealink Connect app
> Visual indicator: One blue LED indicates
pairing and connection