1. Power
1.1. 9V
1.1.1. Regulated
1.1.1.1. Prevents inaccuracies
1.1.1.1.1. Low power: shuts off when voltage too low to prevent inaccuracies (<5V)
1.1.2. Battery Save Indicator
1.1.2.1. Off after 30 minutes inactivity
1.1.3. Power consumption
1.1.3.1. 10mA (powersave) 32mA (USB) 80mA (USB and loud speaker)
1.1.4. Lifespan
1.1.4.1. 4 days (powersaver) 16 hours of regular, continuous use (USB) 5 hours (USB and loud speaker)
2. Research Quality Data
2.1. Frequency of 70~2500Hz
2.1.1. Can measure a larger range of muscles
2.2. Filtered Bandpass 3rd Order Sallen-Key Active Filter
2.2.1. Less noise
2.2.2. 3x filtered
2.2.3. Accurate reading
3. Speaker
3.1. 105 db output average
3.1.1. at 6 inches from SpikerBox, less when farther away
3.2. Consumption
3.2.1. 16 Ohm @ 0.5W
3.2.2. Amplified 1.5W
4. Inputs
4.1. 4 Channel
4.1.1. Expansion Port
4.1.1.1. 5 Digital inputs
4.1.1.1.1. 5 different markers into SpikeRecorder and record
4.1.1.2. 2 extra analogs
4.1.1.2.1. Microphone, music, sensors, etc
4.1.1.3. 2 RAW signal output
4.1.1.3.1. For input to another device that needs raw signal, like Arduino, MatLab, etc.
4.1.2. Analog
4.1.2.1. Native
4.1.2.1.1. 2 electrode cables
4.2. MicroUSB
4.2.1. to PC interface
4.2.1.1. Mac/PC
4.3. Smartphone
4.4. External Speaker
5. Indicator Light
5.1. Green
5.1.1. Solid
5.1.1.1. Good Battery: 9V to 7.6V
5.2. Red
5.2.1. Blinking
5.2.1.1. 1 blink every 5 seconds
5.2.1.1.1. Low Battery: 7.5V to 6.2V
5.2.1.2. 2 blinks every 5 seconds
5.2.1.2.1. Powersave mode, turn off reccomended
5.2.2. Solid
5.2.2.1. Very Low Battery: 6.1V to 4.5V
5.3. No light
5.3.1. Voltage below 4.5V, board shutdown
5.4. Blue
5.4.1. Blinking
5.4.1.1. Fast
5.4.1.1.1. expansion connected
5.4.1.2. Slow
5.4.1.2.1. expansion disconnected
5.5. Some color, undecided
5.5.1. Blinking
5.5.1.1. SpikerBox connected to PC
6. Physical Interface
6.1. Speaker dial
6.1.1. ON/OFF button
6.1.2. Volume
6.2. CH1/CH2 toggle
6.2.1. Toggle between hearing which analog/muscle is heard
7. SpikeRecorder
7.1. Utilizes all features
7.1.1. Ch1/Ch2
7.1.2. 5 Markers
7.1.2.1. Event markers, where to start/stop, note etc
7.1.3. Firmware updates
7.1.4. Ports
8. Firmware Updates
8.1. Through SpikeRecorder App
8.1.1. More features to come
9. Protection
9.1. Expansion Board
9.1.1. Protected against overvoltage and short circuit
9.2. Board, Analog
9.2.1. Isolation between PC and board
9.2.1.1. Shock protector
9.3. Smartphone
9.3.1. Balance and input protected: preset volume, doesn't destroy phone speakers
9.4. Headphones
9.4.1. Filtered, no super high pitches