Support system Android, Apple iphone and Tablet PC
• Material: Aluminum alloy
• Magnet Attached
• Touch Switch
• Lithium battery 3.7V, 90mAh
• Working time: 8-10 hours
• Standby time: 30 days
• Charging interface: Type C
• Charging time: 1.5 hour
• Size: Φ1.0mm x 8.9 mm x 166mm
• Weight：16g
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