Mm -RecommAWeight: 2 g. Energy source: battery. Battery type: AA. Number of supported batteries: 1. Energy consumption: 15 mA. number of information information : 1 receiver included: yes, wireless receiver connection: USB, receiver type: nano receiver, batteries included: no, ergonomics, motion detection technology: optical, scroll type: wheel, number of buttons: 4 buttons, type: pressed buttons.
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