FAQs about HHI

Does HHI work the same as the Muscle Spikerbox?
The Muscle Spikerbox is an Analog device that can amplify your muscle activity, the HHI has a similar circuit but also have a Microcontroller that control L...
Wed, 16 Sep, 2020 at 9:50 AM
How to troubleshoot my TENS 3000 unit?
Here are the common troubleshooting steps you can go through: When you turn it on does the LED light up or blink? Did you try to add a new battery to...
Wed, 16 Sep, 2020 at 9:50 AM
How to modify the cable for TENS unit?
Step by step guide about modifying the cable for attaching TENS unit to the  Muscle SpikerShield could be found in the link bellow: https://backyardbra...
Wed, 16 Sep, 2020 at 9:50 AM
Why I'm experiencing pain & muscle tension when using HHI?
The Human to Human interface is composed by 3 parts: Arduino: a microcontroller with ability to program, convert analog into digital and connect to usb....
Wed, 16 Sep, 2020 at 9:51 AM
Difference between Envelope & Raw signal?
Difference between Envelope & Raw mode is that the Raw signal is normal EMG signal, where on the other hand Envelope signal is is smooth line that conne...
Wed, 2 Sep, 2020 at 2:14 PM
What is the Human-Human Interface?
This is the kit featured in our TED talk. We use it as a way to teach about the nervous system and how electrical impulses are used to both receive and send...
Tue, 6 Oct, 2020 at 3:53 PM
Is it possible to add an extra TENS cable to an order?
Yes, certainly we can make an exception.  Once you've completed your order, you can email us your BYB order number and we'll make a note about...
Wed, 7 Oct, 2020 at 5:07 PM