Feature:
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<br />Packing size: 49.5*34*26cm
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<br />Battery capacity: 200MAH
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<br />Charging time: 3-4 hours
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<br />Standby time :300 hours
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<br />Working time:60 hours
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<br />Working current: 2.5 - 3.5MA
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<br />Chip: Broadcom chip Bluetooth version 3 
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<br />Product material: aluminum alloy shell and back plate, ABS plastic frame, injection surface treatment, chocolate ABS button Support system: support A pple IOS system for A pple ipad pro 10.5 Tablet.