#1	Airfrex Bluetooth adapter AF03 is custom made for Bose QuietComfort3 Bose QC3 Active Noise Cancellation headphone it is only compatible with for this headphone model
#2	Long battery life one full charge can last up to 10 hours for Bose QC 3 headphone and it takes 15 hour to 2 hours for a full charge
#3	Wide Bluetooth range and stable signal the Bluetooth distance is 33 feet and the wireless signal is strong and stable no cut in and out no breaking up
#4	Bass enhancement option user can activate or turn off the extra bass feature by a simple double click on the button
#5	Latest CSR Bluetooth 41 chip and builtin microphone feature AF03 applies the best CSR Bluetooth 41 chip for lossless audio transmission to maintain high quality performance