1) Standard: Bluetooth V1.2 2) USB V2.0 3) Bus interface: USB type A connector frequency 4) Band: ISM 2.40GHz to 2.48GHz 5) Modulation: GFSK (Gaussian frequency shift keying) 6) Channel Bandwidth: 1MHz 7) Piconet: supports seven slave 8) Link mode: ACL and SCO 9) Data transfer rate: a) ACL: 723kbps b) SCO: 64kbps 10) RF output power: 0dBm (1mW) Class 1 11) Sensitivity: better than 80dBm 12) Transmission range: 30~60 meters (Class 1) 13) OS supports: Windows 98 / 98SE / 2000 / ME / XP and later versions 14) Security: parsing, encryption, authentication 15) Input power: DC 5V by USB bus-power INNER PACKING: 1/BLISTER OUTNER CARTON: 150/CRT CARTON SIZE: 50*48*45