This is a Bluetooth headset, but not the kind you are used to hearing about. Muse is the first lab-grade Electroencephalography (EEG) device for home use. A few years ago, such equipment cost many thousands of dollars, was invasive, and its use was always supervised by medical personnel. That is no longer the case!
Worn comfortably across the forehead and behind the ears, its censor array streams up to 6 channels of realtime brain wave data to your iOS device. This headband works in conjunction with Muse, an app which trains beginning meditators, reviewed here:
InteraXon, the manufacturer, have also released an open source SDK for anybody with the coding skills and imagination to think up new uses for their brain wave data:
At least 75 hospitals, colleges and other institutions are using this hardware in their research, studying various patient populations.
The first version of the headband had five hours of battery life and two charging ports. It connected like other Bluetooth devices, in Settings > Bluetooth.
The newer and current Muse headband has one charging port and ten hours of battery life. Also, it no longer connects to your iOS device in Settings. Instead, you now connect through the Muse app itself.