The R2 DUO Combo transmitter for speed and cadence transfers data to both ANT+ and Bluetooth-Smart-compatible devices. This makes it possible to simultaneously send all important data to the ROX GPS 11.0 and a smartphone using any compatible app. All of your data gathered through a single transmitter, elminating the need for multiple devices. Features: - Material: plastic- Waterproof: yes according to the IPX7 standard- Data transmission signal: ANT +, Bluetooth- Compatibility: ROX GPS 10.0, ROX GPS 11.0 and ROX 12.0 Sport- Battery: 1x button cell (CR2032)- Color: Black- Weight: 27g

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