Specifications: Compliance with bluetooth specification version 1.1 Support rf power class 2 Wireless connectivity up to 10m Operating frequency range in ism band of 2.402ghz to 2.480ghz Bluetooth & db9 rs232 interface Advantage in pan(personal area networkinbg) Friendly working with laptop, pocket pc, palm, mac os device Supporting windows 95,98, me,2000 or xp