1. mini usb bluetooth 5.0 adapter with high speed up to 3mbps.
2. bluetooth low energy radio usb dongle.
3. dual-mode bluetooth transfer.
4. low-power selectable 1.2 to 3.6 vi/o.
5. supporting bluetooth voice data.
6. supporting multiple languages.
7. compatible with bluetooth v1.2/2.0/2.1/3.0/4.0
item name: bluetooth adapter
chip: csr8510
bluetooth version: bluetooth v5.0+edr v2.1/2.0/3.0
interface: usb 2.0
frequency range: 2.400-2.480ghz
transfer rate: 3mbps
color: black
distance: 0-20m
os supported: windows 7/ 8/ 10/ vista/ xp/ 2000/ 98/ me etc.
item size: 21x16x5 mm
warranty: 2 years