Newegg offers the refurbished Logitech H600 Wireless Headset for $29.99. Coupon code "EMCPFWC37" cuts the price to $23.99. With free shipping, that's a buck under yesterday's mention and the lowest total price we've seen. (It's a current low of $5.) It features a wireless range of up to 33 feet. Deal ends April 19.
A 90-day warranty applies, but it's unclear who backs it.