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2x2 double antennas)
TF card expansion
Current: 3mA
Non-in-ear design
action activation
5.0 Bluetooth Headset For Helmet Waterproof Windproof & Noise Reduction Bluetooth Headset Smart Wear Electronics 2x2 double antennas)1. Bluetooth distance: more than 10 meters 2. Answering method: automatic 3. Input method: bluetooth 4. Speaker specifications: diameter 50 mm, 32 ohms 0. 5W 5. Charging voltage: USB5V 6. Response frequency: 180 2000KHZ 7. Distortion: less than 1% 8. Sound to noise ratio: greater than 80dB 9. Power supply: built in lithium battery 800MA 10. Bluetooth version: bluetooth 5. 0 11. Dimensions: diameter 60x17 mm 12. Weight: 75 grams Product features: 1.
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