RuiLing Mini USB Bluetooth CSR V4.0 Adapter Dongle Class 2 Smart Ready - CSR8510 High Speed 3mbps Micro Wireless Receiver - Long Range Transmitter - Low Power - Compatible with Windows 8 / Windows 7 (32 and 64bit) / Me / 2000 / 98 / Vista / XP For Computer, Laptop, Cell Phones, Pda, Printer, Headphone, Audio, iPhone, iPod - Supports Voice Data - Includes CSR Harmony CD Software and other Bluetooth Enabled Devices. Latest Class 2 Bluetooth 4.0 Smart Ready Adapter, low energy, dual power. (Also Compatible with Bluetooth 1.0, 2.0 and 3.0) USB Bluetooth Dongle Offers High Speed Up To 3mbps Wireless Transmitter Enables Long Range Connectivity Up to 20m-30m Easy Solution for your Computer to Communicate With Bluetooth Enabled Devices Such As Cell Phones, headphones, Bluetooth Headsets, Bluetooth Speakers, Printers and More Compatible with 64 bit and 32 bit Windows 8 and Windows 7/Me/ Windows Vista / 2000 / XP. Fully Content with Bluetooth 4.0 Specification with 24-bit CRC Verify & Adaptive Frequency Hopping(AFH) Enabled High Sensitivity CSR8510 A10 Controller