Overview:
1. Professional Bluetooth 3.0 chip
2. 1200m effective Bluetooth intercom distance, 3 people switch intercom in pairs
3. HD binaural headphones, stereo music
4. Professional waterproof, windproof, high power, support A2DP EDR
5. Answer calls automatically
6. FM radio function 7.
650mAh lithium battery
8. Works for more than 12 hours 10. Intercom with similar products from other brands
9. Connect 3 Bluetooth devices simultaneously
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