✓ONE-YEAR LIMITED WARRANTY: MOOFIT offers a 12-month quality assurance service. If you have any questions about HR8 chest heart rate monitor, please do not hesitate to contact us and we will respond within 24 hours. ✓COMFORTABLE TO WEAR: The ant+ heart rate monitor is made of fabric, more comfortable to wear, and does not slip when moving, a fully adjustable chest strap can be adjusted from 65 to 95 cm. Offer you a good fitness experience. ✓IP67 WATERPROOF:With IP67 waterproof,you can use HR8 HR sensor every day in all weather,But it is not recommended for swimming.In low energy technology, replaceable CR2032 Coin Cell Battery can be continue use up to 500hrs. ✓THIRD-PARTY APP COMPATIBLE:MOOFIT Bluetooth heart rate monitor compatible with hundreds of third-party fitness apps including Zwift, DDP Yoga, Wahoo Fitness, Endomondo,Strava, Rouvy, Peloton, and many more.Records your real-time heart rate data accurately and quickly during exercise. ✓BLUETOOTH & ANT+ DUAL MODE:With Bluetooth5.0 and ANT+ technology, MOOFIT heart rate monitor chest strap ensure you can connect to multiple devices stably,such as bike computer,smart watch,fitness equipment and smart phone. ✓REAL-TIME HEART RATE TRACKING:MOOFIT HR8 heart rate monitor offers low energy consumption, more powerful algorithms and a longer communication distance. Accuracy of up to ±1 bpm is more accurate than optical heart rate measurement.Battery Description: Lithium-Ion. Sensor Type: Wearable. Battery Life: 12.0, 24.0 months. Screen Size: 0.96 Inches. Compatible Devices: Smartphones, Fitness Equipment, Bike Computer. Color: Black. Brand: moofit. Date First Available: October 9, 2022. Best Sellers Rank: #55,725 in Sports & Outdoors. Customer Reviews: 3.8 out of 5 stars 32 ratings 3.8 out of 5 stars. : B0BGPHLKD1. Part Number: ?HR8. Manufacturer: ?MOOFIT. Color: ?Black. Brand Name: ?moofit. Package Weight: ?0.06 Kilograms. Item Package Dimensions L x W x H: ?3.58 x 2.05 x 1.65 inches.