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Bm22 group intercom Bluetooth helmet
Product Features
Weight: 1681.8g mobile phone call: 12 hours
Specification: L XL XXL intercom mode: 10 hours
Lens: PC material, double lens buffer layer: GB standard EPS
Shell material: ABS compliant material, alignment distance: 300-1000m
Standby time: 120 hours charging time: 3 hours
Lining: environmental protection material, odor proof, sweat absorbing, removable and washable
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