ASUS Bluetooth 4.0 USB Adapter USB-BT400, dosah 100m

Specifications
Standards Bluetooth v2.1 + EDR
Advanced Features Adaptive Frequency Hopping (AFH)
Interface USB 2.0 (type A)
Data Rate Up to 3 Mbps
RF Power Class 4dBm (typical)
Range Up to 100 meters in free space
Bluetooth Profile for Windows® 17 Profiles for Windows ( A2DP, AVRCP, BIP, DUNP, FAX, FTP, HCRP, HID, GAP, OPP, PAN, SPP, SYNC, HSP, HFP, BPP, SAP)
Frequency Band 2.400 ~ 2.4835 GHz unlicensed ISM band
Spectrum FHSS (Frequency Hopping Spread Spectrum)
Modulation GFSK (1Mbps), 4-DQPSK (2Mbps), 8-DPSK (3Mbps)
Antenna Printed Antenna
Power Adapter DC 5V (via USB Port)
LED Indicator Power/Active
Support OS Windows XP/Vista  
Security Pairing, Encryption, Authentication (RAND 128 bits)
Size 19.47 x 16 x 8.1 mm (L x W x D)
Weight 2.2g
Operating Temperature 0? ~ 60? (32? ~ 140?)
Storage Temperature -10? ~ 70? (14? ~ 158?)
Humidity 5~90% non-condensing