USB, battery dual; can either plug directly on the computer using the USB interface, install the batteries can also be used.
Port: NingBo
Minimum Order Quantity: 100 Piece/Pieces
Supply Ability: 50000 Piece/Pieces per Day
Payment Terms: T/T,Western Union,PayPal
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[Size] 7 * 10 * 2.5cm
[single weight] 0.096 kg
[Product Material] ABS + Electronic Components
[Packaging] Box