Features:1) General radio2) Bluetooth class 2: 20m (in open space)3) Carrier frequency: 2.4 - 2.483GHz4) Data rate: up to 3Mbps (the maximum operating range depends on the environmental factors) 5) Bluetooth standard: Bluetooth V2.0 + EDR 6) Spread spectrum: FHSS (Frequency Hopping Spread Spectrum) 7) Modulation method: a) GFSK (1Mbps), π/4-DOPSK (2Mbps) b) 8DPSK (3Mbps) 8) Sensitivity: -82dBm (typical), GFSK 9) RF output power: 13dBm (typical), GFSK 10) System supported: Windows XP / 2000 / Me / 98 SE 11) Dimensions: 51.0 x 16.0 x 8.0mm 12) LED indicator: single LED 13) Bundled Bluetooth software: IVT BlueSoleil, or ESI Bluemanager