Technaxx BT01. Connectivity technology: Wireless, Host interface: USB, Interface: Bluetooth. Data transfer rate (max): 24 Mbit/s. Bluetooth version: 2.0+EDR, Networking standards: IEEE 802.15.1, Frequency band: 2.4 - 2.483 GHz. Gain: 89 dBi. Width: 22 mm, Depth: 18 mm, Height: 7 mm