Details"Polo Sport" screen-printed at the right chest and the back. Signature pony screen-printed at the left chest. "PSAL/067 PoloTech Biometric Sensing Technology" screen-printed at the right sleeve.PoloTech Shirt: 70% polyester, 21% nylon, 9% spandex, exclusive of trim. Machine washable. Remove the black box before washing. Follow the care instructions printed on the shirt.Shirt and USB cable: imported. Black box: assembled in the USA from imported parts. Contains Transmitter Module FCC ID: TFB-BT2. This device complies with Part 15 of the FCC Rules. Powered by OMsignal.Operation is subject to these conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.Compatible with the Apple Watch, iPhone, and iPod touch® with iOS 8 and up. Apple Watch, iPhone, and iPod touch are registered trademarks of Apple Inc.To ensure the proper placement of biometric sensors, the shirt should be worn by an adult man. It should never be worn during contact or combat sports, or activities such as but not limited to football or wrestling.The shirt shouldn't be worn by anyone with an implantable medical device like a pacemaker or an implantable cardioverter defibrillator, or women who are or suspect they are pregnant.Biometric readings may be subject to variability, and accuracy is not guaranteed. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your doctor if you have a medical concern.For full details, read the PoloTech manual.