<P> The MIE2i headset is a version of the MIE2 design for Apple devices (including the iPhone, iPod, iMac, iPad). It incorporates an in - line remote control for volume, track up / down and access to select Apple voice applications . </P> <P> On November 1, 2010, Bose released its first wireless Bluetooth headset . Ambient noise sensing automatically adjusts the volume level based on background noise so that, in theory, the user should not have to adjust the volume when walking between quiet and noisy environments . Signal processing attempts to amplify the caller's voice and reject background noise, allowing the caller to be heard more clearly; however, in practice call quality is poor for models without A2DP . The headset design is similar to Bose's IE2 headphones . </P> <P> The first release of the Bose Bluetooth headset was criticized for having poor call quality, a lack of features and a high price tag . </P> <P> On October 2011, Bose released its second - generation Bluetooth headset . It comes in both a left and a right ear version, supports A2DP, and the automatic volume control based on background noise level (termed "Adaptive Audio Adjustment technology" by Bose) has been revised . </P>

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