Anti Theft Wheel Bolt Nut Key. Bluetooth version: 4.0. AUX IN: Front 3.5mm audio input. Bike Accessories. Radio band: FM1-FM2-FM3-AM1-AM2. Radio frequency: 87.5~108.0MHz 522~1620KHz. Voice assistant: After connecting Bluetooth, short press AMS for starting up smart voice assistant.
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