Adesso Wkb-3150Ub 2.4-Ghz Wireless Truform Ergonomic Computer Keyboard With Trac

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Wireless ergonomic keyboard with split key layout;
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Integrated palm rest for wrist support;
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Built-in optical trackball and scroll wheel;
quiet membrane switches;
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2.4-GHz wireless with 30-ft. range to USB wireless receiver;
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Removable Mini Ergo trackball for easy cleaning;
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1-touch multimedia hot keys;
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Includes USB wireless receiver, 2 AAA batteries, and manual;