Lenovo offers its Lenovo WD100 Wireless Display Adapter, model no. 888015926, for $39.99. Coupon code "USP1D435926" cuts the price to $27.99. With free shipping, that's the lowest total price we could find for a similar adapter by $8. It connects your mobile phone and tablet to your TV/projector and features a one-touch push to TV. Deal ends December 26.