◆Active Noise Cancellation, the frequency range of 20-3000Hz, and the noise suppression above of 28dB.
◆Bluetooth Chipset : BES2000-IS
◆Bluetooth Version: Bluetooth  4.2 
◆Radio Class: Class 2     
◆Communication Protocol:A2DP v1.3、AVRCP v1.5、HFP v1.5 
◆Audio Codec :   SBC                                          
◆Distance: 10m in free Field