Absolutely! Our helmet Bluetooth headset is equipped with advanced triple noise cancellation technology, including a DSP chip, CVC technology, and a noise-proof microphone. This ensures you experience crystal-clear audio quality, even when cruising at high speeds. 

Yes it does but you have to turn it ON manually from settings 

I guess your Macbook Air port is Type-C port, there are following ways for you: Way 1: need a USB A to USB C adapter. If your computer is type-c port, you need to have a USB A to USB C adapter, use the equipped usb cable, type-C end of USB cable to connect the camera, another end of USB Cable (usb-A) to connect the USB A to USB C adapter, and then insert into your computer, you will see a U disk icon on your computer, and then you can transfer the phones and videos on your computer. Way 2: Need a usb c sd card reader for Micro SD/SDXC/SDHC. We hope it is helpful to you. Thanks for your kind asking 

Yes,it is 

No, you can use the recorder directly. It has a clear OLED display and is very easy to use and set up. The recorder with playback function also supports connection to computer (Windows/Mac) and cell phone (Android/iPhone), so you can manage or transfer files easily.