Match the Bluetooth standard on version 1.1/1.2 Class2 operation, the kernel of the Bluetooth has passed the attestation of Bluetooth BQB., no external power is required, get power from the USB interface directly, match USB1.1 standard, LED light indicator, built-in antenna. Spectrum: 2.4 Ghz ISM, the max transfer rate for data is 723 Kbps; Wireless LAN: Support 7 ports, wireless distance 10-20M; Current: no more than 90 mA; Transfer speed: 480 Mbps; Operate system：Windows 98SE/ME/2000/XP,Macintosh OS 9.0 or above; Power：USB 5V600ma; Op.temperature：0℃-70℃; Storage temperature：10℃-90℃; Humidity：10%-90%non-condensing; Pls feel free to contact me mail: salesb AT ztusb DOT com; Primary Competitive Advantages : . Well and High Quality Control . Prompt Delivery . New Product . Customer's Designs and Logos are Welcome . Competitive Prices . In a Variety of Designs . ODM Accepted . OEM Accepted Safety/Quality Approvals : ISO-9001,FCC,CSA,CE,UL,JIS,EMC.