1. ANT+ wireless communications protocol; up to 8 channels.
2. Receive ANT+ wireless radio and translate it into USB protocol for computer software.
3. Plug into the USB port of a computer and search for the cycling software, easy to use.
4. Suitable for Garmin, for Zwift, for Wahoo, for Bkool.
5. Mini size and light weight, very convenient to carry.
Specifications:
Transmission Range: 5 meters (best performance within 3 meters)
Size: 1.9 * 1.5cm / 0.7 * 0.6in
Weight: 8g / 0.03oz