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
Dual Bluetooth & ANT+ Connectivity
Connect seamlessly to bike computers, smartwatches, fitness apps, treadmills, and indoor trainers for instant data sync.
Accurate Real-Time Tracking
Monitor your heart rate continuously and adjust your training intensity with confidence.
IP67 Waterproof & Sweatproof
Built to handle sweat, rain, and intense workouts — ideal for cycling, running, and triathlon training.
800-Hour Battery Life
Powered by a replaceable CR2032 battery for long-lasting performance without frequent charging.
Comfortable & Secure Fit
Soft, skin-friendly elastic strap stays in place even during high-intensity movement.
Detachable Sensor Design
Easy snap-on/off sensor makes cleaning and battery replacement simple and convenient.
Lightweight & Low-Profile
Slim and compact design ensures a natural, distraction-free fit during exercise.
ROCKBROS
Battery life: 800 hours Battery: CR2032 button cell Heart rate range: 30~240 BPM
Bluetooth 4.0 (10 meters), ANT+ (6 meters)
Explore Boundlessly, Ride Passionately.
Enjoy Cycling, Enjoy ROCKBROS.
Let the rhythm of rolling wheels become the soundtrack of freedom and joy.
