Specifications:
Type: Adapter
Model: BTD-401
Weight: approx. 20g
Size: Approx. 0.9 x 0.6 inches (2.2 x 1.5 cm).
For CSR8510A10 Original Chip:Yes
Standard: V4.0 + EDR dual mode
Support Class 2:Yes
USB interface: USB 2.0 standard, backwards compatible with 2.0 /3.0 standard
Operating frequency band: 2.4GHz-2.483GHz, FHSS) frequency hopping spectrum diffusion technology.
Operating range in open space: Approximately 66.4 - 164.2 ft (20 - 50
Intuitive software operation interface, no complicated configuration: Yes
Applicable to operating systems: / ME / 2000 / XP / 2003 / VISTA / WIN7 / 8 / 8.1
For XP SP2 / VISTA / WIN7 / 8 / 8.1, driving is inevitable, easy to carry. For WIN8/8.1, you can connect it directly to the headphone speaker. Need to install other driver)
Data Transfer Rate: Up to 3Mbps
Sensitivity <-85dBM
Security: Built-in password and user authentication
Power Supply: USB interface that is powered directly
PC / for Mac: Wireless dial-up Internet access) Mobile phone