Amazon.com has a Kensington 33132 Pocket Wireless Presentation Device for $35.99 with Free Shipping.
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- PC and Mac compatible; 1-year warranty n
- Intuitive, 4-button controls with 1-touch start button n
- 50-foot wireless range n
- Wireless receiver plugs into your laptop’s USB port for easy installation n
- Receiver stows away inside the controller when not in use