Packaging size: 24 * 13.7 * 3.7cm Product weight: 166 grams Product Material: Plastic 1. Bluetooth version: V4.0+EDR 2. Frequency range: 2.4026GHz-2.480GHz 3. Transmission distance: 10M (transmission distance may vary due to environmental factors and different Bluetooth devices on mobile phones) 4. MIC distance: ≤ 1 meter 5. Lithium battery: 3.7V/500mA 6. Charging time: 4-5 hours 7. Standby time: about 180 hours 8. Continuous working time: approximately 32 hours 9. Bluetooth name: BT12 Suitable for full face helmets/half face helmets, off-road helmets, flip helmets
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