Vertical Mouse, Right Handed 2.4GHz Wireless Ergonomic Rechargeable Vertical Mouse with 4 Adjustable DPI 800/1200/1600/2400, 6 Buttons,Compatible with PC, Desktop,Mac (Black)… Black cocoon Made of high-end brushed Aluminum

Made of high-end brushed Aluminum and ABS

The module detects that there is a sound trigger signal relay is turned on

you can easily clean your keyboard

Superior Comfort and Support: Equipped with thick elastic foam padding

These are used to mute one or more piano strings during piano tuning

Vertical Mouse, Right Handed 2.4GHz Wireless Ergonomic Rechargeable Vertical Mouse with 4 Adjustable DPI 800/1200/1600/2400, 6 Buttons,Compatible with PC, Desktop,Mac (Black)… Black cocoon Made of high-end brushed AluminumVertical Mouse, Right Handed 2. 4GHz Wireless Ergonomic Rechargeable Vertical Mouse with 4 Adjustable DPI 800 1200 1600 2400, 6 Buttons,Compatible with PC, Desktop,Mac (Black) Description System requirements IBM or compatible computer Windows2000 ME XPx64 Vista 7 8 Mac OS Xover V10. 4 An available USB port Package Contents Mouse x1 Receiver x1 Instructions x1 Specification Button number6 buttons Tracking System: optical Frequency: 2405MHz 2476MHz