Technical Specifications
Headset Version | Pre-2019 | 2019 |
Number of Channels | 5 (plus CMS/DRL reference on left mastoid) | 5 (plus CMS/DRL reference on left mastoid) |
Channel names (International 10-20 locations) | AF3, AF4, T7, T8, Pz | AF3, AF4, T7, T8, Pz |
Sampling Method | Sequential sampling, single ADC | Sequential sampling, single ADC |
Sampling Rate | 128 SPS (2048 Hz internal) | 128 SPS (2048 Hz internal) |
EEG Resolution | 14 bits 1 LSB = 0.51μV (16 bit ADC, 2 bits instrumental noise floor discarded) | 14 bits 1 LSB = 0.51μV (16 bit ADC, 2 bits instrumental noise floor discarded) |
Bandwidth | 0.5 - 43Hz, digital notch filters at 50Hz and 60Hz | 0.5 - 43Hz, digital notch filters at 50Hz and 60Hz |
Filtering | Built in digital 5th order Sinc filter | Built in digital 5th order Sinc filter |
Dynamic Range (Input referred) | 8400 uV (pp) | 8400 uV (pp) |
Coupling Mode | AC coupled | AC coupled |
Connectivity | Proprietary 2.4GHz wireless (with dongle), BLE | Proprietary 2.4GHz wireless (with dongle), BLE |
Battery Capacity | LiPo battery 480mAh | LiPo battery 450mAh |
Battery Life (typical) | Up to 8 hours | Up to 8 hours |
Impedance Measurement | Real-time contact quality using patented system | Real-time contact quality using patented system |
IMU Part | LSM9DS0 | ICM-20948 |
Accelerometer | 3-axis +/-8g | 3-axis +/-4g |
Gyroscope | 3-axis +/- 500 dps | Output as Quaternion |
Magnetometer | 3-axis +/- 12 gauss | 3-axis +/- 4900 uTesla |
Motion Sampling | 128 Hz | 64 Hz |
Quaternion Outputs | No | Yes |
Motion Resolution | 14-bit | 14-bit (dongle) / 8-bit (BLE) |
Sensor Material | Semi dry polymer | Semi dry polymer |
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