








Orders under $29.99 ship for $4.99, while orders of $29.99 and above enjoy free shipping (3–5 business days). $10 extra applies for bulky items.
In-stock items ship from our U.S. warehouse in 3–5 business days; international orders take 7–12 business days when U.S. stock is unavailable.
We offer a 30-day hassle-free return and exchange policy starting from the date you receive your item. To be eligible, products must be unworn, unused, with tags attached, in original packaging, and accompanied by proof of purchase. If the item is defective, damaged, or incorrect, we cover the return shipping cost; for size or personal preference returns, the customer is responsible for shipping fees. Please inspect your order within 72 hours and contact us for any issues. Refunds will be processed within 10 business days after we receive and inspect your return. Please contact customer service before returning items and send returns to the designated address; unauthorized returns will not be accepted. For questions, email-contact@rockbrosus.com
Estimated Delivery Timeline
This heart rate monitor supports dual Bluetooth and ANT+ connectivity, delivering stable, real-time heart rate data to sports watches, bike computers, and popular fitness apps. It helps you track training intensity accurately and make data-driven decisions during workouts. With an IP67 waterproof and sweat-resistant design, it performs reliably in demanding environments such as triathlon training, trail running, and high-intensity sessions. Weighing just 12g, the ultra-light body and flexible electrode pads provide a secure, barely-there fit—comfortable from indoor gym training to outdoor endurance challenges.

ROCKBROS
Operating Temperature: 41°F - 104°F (5°C - 40°C)
Black