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Product introduction: CSR4.0 Bluetooth adapter is the latest Bluetooth adapter product on the
market, with a USB2.0 interface, to deal with the data between PC and multiple Bluetooth audio 
data interaction. Using the CSR (Cambridge Silicon Radio) formal original chips: CSR8510, tie-in CSR original driver management software: CSR Harmony. Fully comply with v 4.0 specification, 
support 20 m long-distance transmission, signal stability is strong, dual-mode, power 
consumption is extremely low, all technical performance over other versions of the Bluetooth 
technology at present.
Product specifications:
Product name:V4.0 adapter 
Product model:CSR4.0-06 m/CSR4.0-06 h 
Product size:26 * 16 * 7 (mm) The
weight of products:3 g 
Sensitivity:- 86 - dbm 0.1 % 
PR transmission power:+ 6 DBM (Ⅱ class) 
The chip of products:CSR8510 
Transfer rate:3 MBPS 
Transmission distance:20 m. 
Product interface:usb 
Driver software: CSR Harmony Wireless Software Stack Support
system: Windows XP/Vista / 7/8
Painted product features: 
adopts CSR8510 chip, real conforms to the V 4.0 specification, dual-mode transmission. 
U further transmission distance: 20 m long transmission distance (no block), the signal is strong. U more stable transmission rate: 3 MBPS transmission rate, provide high-speed documents, audio data transmission. 
Taken the CSR original driver management software: CSR Harmony drive management software is convenient and easy to use, powerful function, support for multiple application extensions (Microsoft OFFICE software). Taken the ultra-low speed delay link, energy-saving, intelligent
sleep-wake-up 24 - bit CRC check against interference, adaptive to reduce crosstalk. U completely backwards compatible V 2.0, V 2.1, V3.0 specification. Taken the USB2.0 interface is more general, super mini size carries portable.