Lenovo offers its Lenovo W770 Wireless Headset in Black, model no. 0B65782, for $49.99. Coupon code "USP1JL435782" cuts it to $19.99. With free shipping, that's tied with our December mention and the lowest total price we could find by $15. This headset features a 40mm drive unit, 2.4GHz audio transmission, and hidden microphone. Deal ends July 25.