· Bluetooth profile version: Bluetooth specification v2.0,compatiblev1.1,v1.2

· USB protocol: USB v2.0

· Frequency: 2.4 Ghz ISM band

· Modulation: GFSK(Gaussian Frequency shift keying)

· Transmission power: ≤4dBm Class2

· Communication distance: ≤10m,Class2

· Sensitivity: ≤-84dBm at 0.1% BER

· Communication speed rate:

· Asynchronous: 3Mbps(Max)

· Synchronous: 433.9kbps

· Security: Authentication and Encrytion

· Power: +3.3VDC /+1.8VDC

· Working current: 2-20mA

· Temperature: -20 ~ +55