... :up to 10-100meter Description:This Bluetooth Adapter is a fingernail-sized, this device can plugs into laptop or tablet ... USB port. This Bluetooth Adapter uses Bluetooth standard v2.0 + ... ,Single-chip solution integrating radio, baseband, microcontroller 9,Protocol Bluetooth host controller, L2CAP, SDP, RFCOMM 10,Current consumption 80mA ...