... OS (Windows XP, Windows Vista, Win7).Main Features:1,Bluetooth Version: Bluetooth V3.0, in BROADCOM 20730 chipset.2, 66keys ... solutions with Bluetooth human interface device and comply with the standard version of the Bluetooth SIG Bluetooth 3.06, Power by ... 2.4-2.4835GHz unlicensed ISM band2, Receiving sensitivity: -75bm (standard)3,Battery capacity: 310ma4,Working Current: <1.8ma5, Standby current ...