1. One-to-one ANT+Bluetooth 4.0 heart rate transmitter belt, chest strap detachable and washable, product with RR value 2. Transmit heart rate value at 2.4G frequency, theoretical distance is 10m, with RR value 3. Accuracy: +5% or -5% (according to the tester) 4. Output mode: frequency 2.4G wireless transmission 5. Material: ABS, TPU, nylon 6. Battery: Button battery 2032, lifespan of more than 6 months 7. Display: no display 8. Product size: Transmitter: 6.3 x 3.6 x 1.3cm, elastic band 9. The adjustable range of natural elongation before unstretched circumference is: 61 to 93cm 10. Weight: 68.9g 11. Note: This product needs to be used in conjunction with a device with ANT+ receiving function or Bluetooth 4.0 receiving function
