Form Collar
Tech specs 
TypeThis is a smart device that helps you improve both the form and performance of all barbell lifts. The device can not only track speed and force, but also whether the lifter is using proper form.
ChargingUSB charging
Battery lifeUp to 5 hours
Weight"lightweight"
Water resistanceSplash proof
Sensor7 integrated motion sensors (200 samples per second)
DisplayLED status lights
Metrics 
TracksAnalyzes velocity, force production, acceleration and more to give you helpful insights into when to push and when to back off your training. Provides real-time data visualizations to help you maximize power output for every session. FORM Collar is the first device that can actually give you metrics on individual parts of the Snatch and Clean & Jerk.
Other
Links 
Affiliate link*Form Lifting
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