- 24-Bit CRC Verification & Adaptive Frequency Hopping(AFH) Enabled allow a Reliable Connection up to 3Mbps and 100 Metres (Peer to Peer) with any Bluetooth Enabled Cell Phone,Tablet,Speaker,Headset or Headphone,Mice and Keyboard;  - Advanced Audio Processing Exclusive for Bluetooth 4.0 Voice Quality Enhancing allow to Process AAC Audio Losslessly as well as Process MP3,WAV,APE or FLAC;  - Compatible with Classic Bluetooth 4.0 and Bluetoth 3.0.Plug and Play Enabled Fingernail Size Micro Adapter allow to Plug and Forget;  - It's an Ideal Solution to transfer File,Audio or Voice Wirelessly for your Desktop and Laptop;  - BTA Dual Mode (Transmitter & Receiver) Enabled Bluetooth Adapter Extra Premium CSR Harmony Application allow Microsoft Office and other Applications Accessing Bluetooth Connection Directly;  - AVRCP & A2DP Service allow Cell phone,Tablet and any Bluetooth Devices connect to Speaker,Headset of Computer with BTA and Playing Music of transfer Voice,Update your Wired Speaker or Headset to Bluetooth Easily;    Compatible Operating Systems   - Windows XP,2003,Vista,7,2008 and Windows 8 32 or 64 Bit;  Compatible Bluetooth Devices  - Cell Phone, Tablet, Speaker, Headset or Headphone, Mice and Keyboard,   Compatible Bluetooth Profiles   - HID,24-Bit CRC,AFH,EDR,Advanced Audio Processing,AVRCP,A2DP,DUN-GW,HSP,HFP A2DP AVTCP,FTP,OPP,Audio-GW,FAX,BPP,    Specification:  blurtooth: V4.0,  Color: Black/Red/White/Blue,  Material: ABS,  Certification: FCC CE ROHS,    Package Includes:  1x Bluetooth 4.0 Dongle,  1x Instructions,