Features:

High sensitivity Bluetooth controller chipset support 24-bit CRC Verify & Adaptive Frequency Hopping(AFH) interference resistivity.Provide Extra CSR Harmony software allow Microsoft Office and other software directly applicative for Bluetooth connection.Features Advanced Audio Processing lossless and DATA Transmission, Support AVRCP&A2DP Service allow to play music on the speaker & headset of computer from Cell Phone or Tablet PCCompatible with the latest Bluetooth V4.0 standard provide transmission rate up to 3Mbps and transmission distance up to 100 meters(In free space without interference)Mini Bluetooth 4.0 Adapter Dongle, Fingernail size form factor design extremely compact

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General
Brand	ORICO
Model	BTA-401
Material	Metal/ABS
Specification
Type	Bluetooth 4.0 Adapter
Bluetooth	Bluetooth V4.0
USB Type	USB2.0
Chip Type	CSR8510
Transmission Distance	0-20M (the best distance is within 10m)
Compatible with System	Win7
Body
Dimension	22x13x7mm
Weight	3g

In the box:
1 x Bluetooth 4.0 Adapter 1 x Drive CD