Bragi (company)

Bragi brought The Dash to the market in late 2015. It is a touch- and head gesture-controlled truly wireless smart earphone and a personal assistant that comes pre-installed with Bragi OS. It can be used standalone or connected to a Bluetooth device that supports Bluetooth 4.0 or higher. It streams stereo audio through a Bluetooth connection or uses the internal music player on the right earphone with 4-GB flash storage to playback stereo audio. The audio playback time of The Dash is up to 3 hours depending on system usage and 15 hours on the go, while the charging case can recharge the device for five times.[19] The Dash can be used in standalone mode, where the user wears only the right earphone and double taps on it to power on.

The Dash can track the user's movements and body metrics through its IMU. Additionally, it tracks its user's pace, steps, cadence, distance and measures heart rate and energy spent in calories while running, swimming and cycling. It provides real-time audio feedback during an activity. User's activity data can be transferred to a smartphone using the Bragi App.[20]

In addition to being earphones, The Dash doubles as a Bluetooth Headset. Even though The Dash provides noise isolation, the wearer can choose to channel ambient sound into the headphone thanks to its audio transparency feature. With a swipe on the touch surface of The Dash, the user can enable or disable ambient sound to pass through.[21]

The Dash has a touch-controlled interface on the lower half of each earphone, where the user can interact with the device through taps, swipes and holds.[22] For instance, when not connected to a Bluetooth device, a short hold on the right Dash will start the internal music player menu. While in the menu, short holding again on the right Dash will exit the menu. A single tap on the right Dash plays or pauses the music from internal or external player. It is also possible to deactivate the touch interface with Touch Lock when the user is wearing hoodies, helmets or something similar when using The Dash to prevent unintended triggering of various events.

The right Dash earphone has touch gestures for the Bluetooth connectivity, phone call handling, internal and external audio player; while the left Dash earphone has touch gestures for the training coach for activities and time. In addition to the touch commands, Bragi OS brings the Bragi Kinetic User Interface (KUI) to Dash, which gives the user other ways of interaction with the device. For instance, it lets the user do head gestures and double taps on the cheek to interact with it the device.[23]

The Dash is an ARM-based completely wireless smart microcomputing platform equipped with a speaker, microphone, and various sensors such as high-resolution optical touch sensor, gyroscope, accelerometer and dual pulse oximeter sensors.[24] It has a 100mAh Lithium-ion battery. It supports dual mode Bluetooth 4.0 and is audio compatible with classic Bluetooth devices and Bluetooth Low Energy.[25] Left and right Dashes sync with each other using Near Field Magnetic Induction (NFMI).[26]

The Headphone is the second hardware product introduced by Bragi on September 5, 2016. Users can connect The Headphone to any Bluetooth device and switch between music tracks, take phone calls, activate Audio Transparency and deliver voice commands. It comes with up to 6 hours of battery life per charge.[27] Just like The Dash, the right and left earbuds of The Headphone communicate via NFMI technology.[28] They do not feature touch interface, but have physical buttons instead. Finally, unlike The Dash's charger, the charger of The Headphone does not charge the earbuds.

Bragi OS is an operating system developed by Bragi since 2014 and designed to run on the next-generation computing platforms. It comes pre-installed with The Dash bringing an audio player and smart features such as the training coach for running, swimming and cycling activities. The Kinetic User Interface (Bragi KUI) brings interaction by head nods and shakes and double taps on user's cheek (called Shortcut). The OS can also optimize the performance of The Dash through a calibration process.[29]

The training coach can be accessed by a short hold on the left Dash. It tracks its user's pace, steps, cadence, distance and measures heart rate and energy spent in calories while running, swimming and cycling. It provides acoustic feedback every 5 minutes, and the user can alternatively access the real-time performance through touch control on the left Dash. When the training is finished, the session data is sent to the Bragi smartphone app, where the user can review previous training performances.

The audio player of Bragi OS can be accessed by a short hold on the right Dash. The internal audio player can play MP3 and AAC formats without DRM. The user can access the touch controls on the right Dash to play, pause, shuffle, fast forward, rewind the music and skip to the next or go to previous track. The interface can also be used to control the streamed audio from Bluetooth devices.

The head gestures give the user hands-free control of The Dash. For instance, when connected to a phone, the user can accept or reject calls by nodding or shaking his head, respectively.[30] Using head gestures, the user can also navigate the menus on both sides of the Dash such as the training coach menu on left side. In this scenario, after a short hold on The left Dash, the user enters the training coach menu. The user can go through the activity list, which is composed of running, swimming and cycling, by head shakes and choose the activity to start by a head nod. Starting from Bragi OS 2.2, the user is given the ability to shake head to skip a track during the first 10 seconds of playtime. It is supported only when playing audio from the internal player.

The user can configure The Dash from the Bragi smartphone app such that the audio transparency is turned off automatically when the music is played or resumed, and turned on when the music is paused.

Previously called MyTap, the Shortcut feature of the Bragi OS recognizes a double tap gesture on user's cheek and triggers user-defined actions. Using the Bragi App, the user can choose between Google Now or Apple Siri activation, skipping an already playing song or playing/pausing a song as the triggered event. It is a feature under development and is included in Bragi OS version 2.2 as beta feature.

Bragi OS brings the Routines feature, where the user can configure The Dash to tell the time when the user inserts it and/or at full hours.

The user can deactivate the touch interface of The Dash to prevent unintended interaction with the device.[31] This is done by a short hold on both left and right Dash at the same time. While Touch Lock is activated, no interaction with the touch interface is possible. To activate the touch interface, the user needs to remove the left Dash and insert into ear again.

WindShield is another audio transparency feature of Bragi OS that was introduced with version OS 2.2.[32] When enabled, it reduces the sound of breeze under windy conditions, while still letting the user hear the surroundings.