ITEM NAME:Wireless Bluetooth 4.0 Ble Cc2540 Sniffer Board Usb Interface Dongle Packet E2N3 Wireless Bluetooth 4.0 Ble Cc2540 Sniffer Board Usb Interface Dongle Packet E2N3 Operating Frequency:2.405-2.485GHz Wireless Transmission Speed Rate:1Mbps Lead Out 8 IO Ports Matching Different Firmware (Sniffer And BTool) To Achieve Bluetooth Adapter And Protocol Analyzer Function Color:green Material:plastic + metal Package Contents: 1 xBluetooth 4.0 BLE CC2540 Sniffer Board