Helmet Bluetooth Intercom Rechargeable battery: 3.7v / 1000 Mah polymer battery Q58-Max

-20 F. helmet intercoms 1000mA Large Capacity Battery: Built-in 1000mAh rechargeable lithium-ion battery, long standby and working time. Supports 80 hours of continuous talk and play, 600 hours of standby time.

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