Latest Bluetooth v2.1 specification with EDR function enables data transfer up to 3Mbps. * Simultaneously multiple pairing with your Bluetooth peripheral; Support 17 Profiles for Windows OS; * Standard: Bluetooth v2.1 + EDR; Advanced Features: Adaptive Frequency Hopping (AFH); Interface: USB 2.0 (type A. * Bluetooth Profile for Windows: 17 Profiles for Windows ( A2DP, AVRCP, BIP, DUNP, * Spectrum: FHSS (Frequency Hopping Spread Spectrum); Modulation: GFSK (1Mbps), 4-DQPSK (2Mbps), 8-DPSK (3Mbps) * Antenna: Printed Antenna; Power Adapter: DC 5V (via USB Port); LED Indicator: Power/Active; Support OS: Windows XP/Vista * Data Rate: Upto 3 Mbps; RF Power Class: 4dBm (typical); Range: Upto 100 meters in free space. * FAX, FTP, HCRP, HID, GAP, OPP, PAN, SPP, SYNC, HSP, HFP, BPP, SAP); Frequency Band: 2.400 ~ 2.4835 GHz unlicensed ISM band * Support A2DP for Wireless Stereo Music Playback; Based on USB 2.0 for fast data transfer and power supply no extra power supply needed * Support up to 100msters signal range in open space; Security: Pairing, Encryption, Authentication (RAND 128 bits); Color: Black